1971389200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 240

約数和(自身を含む): 5424652800

約数和(自身を除く): 3453263600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 97, 100, 110, 124, 149, 155, 176, 194, 200, 220, 248, 275, 298, 310, 341, 388, 400, 440, 485, 496, 550, 596, 620, 682, 745, 775, 776, 880, 970, 1067, 1100, 1192, 1240, 1364, 1490, 1550, 1552, 1639, 1705, 1940, 2134, 2200, 2384, 2425, 2480, 2728, 2980, 3007, 3100, 3278, 3410, 3725, 3880, 4268, 4400, 4619, 4850, 5335, 5456, 5960, 6014, 6200, 6556, 6820, 7450, 7760, 8195, 8525, 8536, 9238, 9700, 10670, 11920, 12028, 12400, 13112, 13640, 14453, 14900, 15035, 16390, 17050, 17072, 18476, 19400, 21340, 23095, 24056, 26224, 26675, 27280, 28906, 29800, 30070, 32780, 33077, 34100, 36952, 38800, 40975, 42680, 46190, 48112, 50809, 53350, 57812, 59600, 60140, 65560, 66154, 68200, 72265, 73904, 75175, 81950, 85360, 92380, 101618, 106700, 115475, 115624, 120280, 131120, 132308, 136400, 144530, 150350, 158983, 163900, 165385, 184760, 203236, 213400, 230950, 231248, 240560, 254045, 264616, 289060, 300700, 317966, 327800, 330770, 361325, 369520, 406472, 426800, 448043, 461900, 508090, 529232, 578120, 601400, 635932, 655600, 661540, 722650, 794915, 812944, 826925, 896086, 923800, 1016180, 1156240, 1202800, 1270225, 1271864, 1323080, 1445300, 1589830, 1653850, 1792172, 1847600, 2032360, 2240215, 2540450, 2543728, 2646160, 2890600, 3179660, 3307700, 3584344, 3974575, 4064720, 4480430, 4928473, 5080900, 5781200, 6359320, 6615400, 7168688, 7949150, 8960860, 9856946, 10161800, 11201075, 12718640, 13230800, 15898300, 17921720, 19713892, 20323600, 22402150, 24642365, 31796600, 35843440, 39427784, 44804300, 49284730, 63593200, 78855568, 89608600, 98569460, 123211825, 179217200, 197138920, 246423650, 394277840, 492847300, 985694600, 1971389200]

約数ペア:

[(1, 1971389200), (2, 985694600), (4, 492847300), (5, 394277840), (8, 246423650), (10, 197138920), (11, 179217200), (16, 123211825), (20, 98569460), (22, 89608600), (25, 78855568), (31, 63593200), (40, 49284730), (44, 44804300), (50, 39427784), (55, 35843440), (62, 31796600), (80, 24642365), (88, 22402150), (97, 20323600), (100, 19713892), (110, 17921720), (124, 15898300), (149, 13230800), (155, 12718640), (176, 11201075), (194, 10161800), (200, 9856946), (220, 8960860), (248, 7949150), (275, 7168688), (298, 6615400), (310, 6359320), (341, 5781200), (388, 5080900), (400, 4928473), (440, 4480430), (485, 4064720), (496, 3974575), (550, 3584344), (596, 3307700), (620, 3179660), (682, 2890600), (745, 2646160), (775, 2543728), (776, 2540450), (880, 2240215), (970, 2032360), (1067, 1847600), (1100, 1792172), (1192, 1653850), (1240, 1589830), (1364, 1445300), (1490, 1323080), (1550, 1271864), (1552, 1270225), (1639, 1202800), (1705, 1156240), (1940, 1016180), (2134, 923800), (2200, 896086), (2384, 826925), (2425, 812944), (2480, 794915), (2728, 722650), (2980, 661540), (3007, 655600), (3100, 635932), (3278, 601400), (3410, 578120), (3725, 529232), (3880, 508090), (4268, 461900), (4400, 448043), (4619, 426800), (4850, 406472), (5335, 369520), (5456, 361325), (5960, 330770), (6014, 327800), (6200, 317966), (6556, 300700), (6820, 289060), (7450, 264616), (7760, 254045), (8195, 240560), (8525, 231248), (8536, 230950), (9238, 213400), (9700, 203236), (10670, 184760), (11920, 165385), (12028, 163900), (12400, 158983), (13112, 150350), (13640, 144530), (14453, 136400), (14900, 132308), (15035, 131120), (16390, 120280), (17050, 115624), (17072, 115475), (18476, 106700), (19400, 101618), (21340, 92380), (23095, 85360), (24056, 81950), (26224, 75175), (26675, 73904), (27280, 72265), (28906, 68200), (29800, 66154), (30070, 65560), (32780, 60140), (33077, 59600), (34100, 57812), (36952, 53350), (38800, 50809), (40975, 48112), (42680, 46190)]