247978920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 256

約数和(自身を含む): 895795200

約数和(自身を除く): 647816280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 89, 93, 105, 107, 120, 124, 140, 155, 168, 178, 186, 210, 214, 217, 248, 267, 280, 310, 321, 356, 372, 420, 428, 434, 445, 465, 534, 535, 620, 623, 642, 651, 712, 744, 749, 840, 856, 868, 890, 930, 1068, 1070, 1085, 1240, 1246, 1284, 1302, 1335, 1498, 1605, 1736, 1780, 1860, 1869, 2136, 2140, 2170, 2247, 2492, 2568, 2604, 2670, 2759, 2996, 3115, 3210, 3255, 3317, 3560, 3720, 3738, 3745, 4280, 4340, 4494, 4984, 5208, 5340, 5518, 5992, 6230, 6420, 6510, 6634, 7476, 7490, 8277, 8680, 8988, 9345, 9523, 9951, 10680, 11036, 11235, 12460, 12840, 13020, 13268, 13795, 14952, 14980, 16554, 16585, 17976, 18690, 19046, 19313, 19902, 22072, 22470, 23219, 24920, 26040, 26536, 27590, 28569, 29960, 33108, 33170, 37380, 38092, 38626, 39804, 41385, 44940, 46438, 47615, 49755, 55180, 57138, 57939, 66216, 66340, 66661, 69657, 74760, 76184, 77252, 79608, 82770, 89880, 92876, 95230, 96565, 99510, 110360, 114276, 115878, 116095, 132680, 133322, 139314, 142845, 154504, 165540, 185752, 190460, 193130, 199020, 199983, 228552, 231756, 232190, 266644, 278628, 285690, 289695, 295213, 331080, 333305, 348285, 380920, 386260, 398040, 399966, 463512, 464380, 533288, 557256, 571380, 579390, 590426, 666610, 696570, 772520, 799932, 885639, 928760, 999915, 1142760, 1158780, 1180852, 1333220, 1393140, 1476065, 1599864, 1771278, 1999830, 2066491, 2317560, 2361704, 2666440, 2786280, 2952130, 3542556, 3999660, 4132982, 4428195, 5904260, 6199473, 7085112, 7999320, 8265964, 8856390, 10332455, 11808520, 12398946, 16531928, 17712780, 20664910, 24797892, 30997365, 35425560, 41329820, 49595784, 61994730, 82659640, 123989460, 247978920]

約数ペア:

[(1, 247978920), (2, 123989460), (3, 82659640), (4, 61994730), (5, 49595784), (6, 41329820), (7, 35425560), (8, 30997365), (10, 24797892), (12, 20664910), (14, 17712780), (15, 16531928), (20, 12398946), (21, 11808520), (24, 10332455), (28, 8856390), (30, 8265964), (31, 7999320), (35, 7085112), (40, 6199473), (42, 5904260), (56, 4428195), (60, 4132982), (62, 3999660), (70, 3542556), (84, 2952130), (89, 2786280), (93, 2666440), (105, 2361704), (107, 2317560), (120, 2066491), (124, 1999830), (140, 1771278), (155, 1599864), (168, 1476065), (178, 1393140), (186, 1333220), (210, 1180852), (214, 1158780), (217, 1142760), (248, 999915), (267, 928760), (280, 885639), (310, 799932), (321, 772520), (356, 696570), (372, 666610), (420, 590426), (428, 579390), (434, 571380), (445, 557256), (465, 533288), (534, 464380), (535, 463512), (620, 399966), (623, 398040), (642, 386260), (651, 380920), (712, 348285), (744, 333305), (749, 331080), (840, 295213), (856, 289695), (868, 285690), (890, 278628), (930, 266644), (1068, 232190), (1070, 231756), (1085, 228552), (1240, 199983), (1246, 199020), (1284, 193130), (1302, 190460), (1335, 185752), (1498, 165540), (1605, 154504), (1736, 142845), (1780, 139314), (1860, 133322), (1869, 132680), (2136, 116095), (2140, 115878), (2170, 114276), (2247, 110360), (2492, 99510), (2568, 96565), (2604, 95230), (2670, 92876), (2759, 89880), (2996, 82770), (3115, 79608), (3210, 77252), (3255, 76184), (3317, 74760), (3560, 69657), (3720, 66661), (3738, 66340), (3745, 66216), (4280, 57939), (4340, 57138), (4494, 55180), (4984, 49755), (5208, 47615), (5340, 46438), (5518, 44940), (5992, 41385), (6230, 39804), (6420, 38626), (6510, 38092), (6634, 37380), (7476, 33170), (7490, 33108), (8277, 29960), (8680, 28569), (8988, 27590), (9345, 26536), (9523, 26040), (9951, 24920), (10680, 23219), (11036, 22470), (11235, 22072), (12460, 19902), (12840, 19313), (13020, 19046), (13268, 18690), (13795, 17976), (14952, 16585), (14980, 16554)]