20400690800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2423}}^1$

素因数の和:2576

約数の個数: 240

約数和(自身を含む): 58441592832

約数和(自身を除く): 38040902032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 97, 100, 112, 124, 140, 155, 175, 194, 200, 217, 248, 280, 310, 350, 388, 400, 434, 485, 496, 560, 620, 679, 700, 775, 776, 868, 970, 1085, 1240, 1358, 1400, 1550, 1552, 1736, 1940, 2170, 2423, 2425, 2480, 2716, 2800, 3007, 3100, 3395, 3472, 3880, 4340, 4846, 4850, 5425, 5432, 6014, 6200, 6790, 7760, 8680, 9692, 9700, 10850, 10864, 12028, 12115, 12400, 13580, 15035, 16961, 16975, 17360, 19384, 19400, 21049, 21700, 24056, 24230, 27160, 30070, 33922, 33950, 38768, 38800, 42098, 43400, 48112, 48460, 54320, 60140, 60575, 67844, 67900, 75113, 75175, 84196, 84805, 86800, 96920, 105245, 120280, 121150, 135688, 135800, 150226, 150350, 168392, 169610, 193840, 210490, 235031, 240560, 242300, 271376, 271600, 300452, 300700, 336784, 339220, 375565, 420980, 424025, 470062, 484600, 525791, 526225, 600904, 601400, 678440, 751130, 841960, 848050, 940124, 969200, 1051582, 1052450, 1175155, 1201808, 1202800, 1356880, 1502260, 1645217, 1683920, 1696100, 1877825, 1880248, 2103164, 2104900, 2350310, 2628955, 3004520, 3290434, 3392200, 3755650, 3760496, 4206328, 4209800, 4700620, 5257910, 5875775, 6009040, 6580868, 6784400, 7285961, 7511300, 8226085, 8412656, 8419600, 9401240, 10515820, 11751550, 13144775, 13161736, 14571922, 15022600, 16452170, 18802480, 21031640, 23503100, 26289550, 26323472, 29143844, 30045200, 32904340, 36429805, 41130425, 42063280, 47006200, 51001727, 52579100, 58287688, 65808680, 72859610, 82260850, 94012400, 102003454, 105158200, 116575376, 131617360, 145719220, 164521700, 182149025, 204006908, 210316400, 255008635, 291438440, 329043400, 364298050, 408013816, 510017270, 582876880, 658086800, 728596100, 816027632, 1020034540, 1275043175, 1457192200, 2040069080, 2550086350, 2914384400, 4080138160, 5100172700, 10200345400, 20400690800]

約数ペア:

[(1, 20400690800), (2, 10200345400), (4, 5100172700), (5, 4080138160), (7, 2914384400), (8, 2550086350), (10, 2040069080), (14, 1457192200), (16, 1275043175), (20, 1020034540), (25, 816027632), (28, 728596100), (31, 658086800), (35, 582876880), (40, 510017270), (50, 408013816), (56, 364298050), (62, 329043400), (70, 291438440), (80, 255008635), (97, 210316400), (100, 204006908), (112, 182149025), (124, 164521700), (140, 145719220), (155, 131617360), (175, 116575376), (194, 105158200), (200, 102003454), (217, 94012400), (248, 82260850), (280, 72859610), (310, 65808680), (350, 58287688), (388, 52579100), (400, 51001727), (434, 47006200), (485, 42063280), (496, 41130425), (560, 36429805), (620, 32904340), (679, 30045200), (700, 29143844), (775, 26323472), (776, 26289550), (868, 23503100), (970, 21031640), (1085, 18802480), (1240, 16452170), (1358, 15022600), (1400, 14571922), (1550, 13161736), (1552, 13144775), (1736, 11751550), (1940, 10515820), (2170, 9401240), (2423, 8419600), (2425, 8412656), (2480, 8226085), (2716, 7511300), (2800, 7285961), (3007, 6784400), (3100, 6580868), (3395, 6009040), (3472, 5875775), (3880, 5257910), (4340, 4700620), (4846, 4209800), (4850, 4206328), (5425, 3760496), (5432, 3755650), (6014, 3392200), (6200, 3290434), (6790, 3004520), (7760, 2628955), (8680, 2350310), (9692, 2104900), (9700, 2103164), (10850, 1880248), (10864, 1877825), (12028, 1696100), (12115, 1683920), (12400, 1645217), (13580, 1502260), (15035, 1356880), (16961, 1202800), (16975, 1201808), (17360, 1175155), (19384, 1052450), (19400, 1051582), (21049, 969200), (21700, 940124), (24056, 848050), (24230, 841960), (27160, 751130), (30070, 678440), (33922, 601400), (33950, 600904), (38768, 526225), (38800, 525791), (42098, 484600), (43400, 470062), (48112, 424025), (48460, 420980), (54320, 375565), (60140, 339220), (60575, 336784), (67844, 300700), (67900, 300452), (75113, 271600), (75175, 271376), (84196, 242300), (84805, 240560), (86800, 235031), (96920, 210490), (105245, 193840), (120280, 169610), (121150, 168392), (135688, 150350), (135800, 150226)]