20247948840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{777571}}^1$

素因数の和:777623

約数の個数: 128

約数和(自身を含む): 71661035520

約数和(自身を除く): 51413086680

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, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 13020, 26040, 777571, 1555142, 2332713, 3110284, 3887855, 4665426, 5442997, 6220568, 7775710, 9330852, 10885994, 11663565, 15551420, 16328991, 18661704, 21771988, 23327130, 24104701, 27214985, 31102840, 32657982, 43543976, 46654260, 48209402, 54429970, 65315964, 72314103, 81644955, 93308520, 96418804, 108859940, 120523505, 130631928, 144628206, 163289910, 168732907, 192837608, 217719880, 241047010, 289256412, 326579820, 337465814, 361570515, 482094020, 506198721, 578512824, 653159640, 674931628, 723141030, 843664535, 964188040, 1012397442, 1349863256, 1446282060, 1687329070, 2024794884, 2530993605, 2892564120, 3374658140, 4049589768, 5061987210, 6749316280, 10123974420, 20247948840]

約数ペア:

[(1, 20247948840), (2, 10123974420), (3, 6749316280), (4, 5061987210), (5, 4049589768), (6, 3374658140), (7, 2892564120), (8, 2530993605), (10, 2024794884), (12, 1687329070), (14, 1446282060), (15, 1349863256), (20, 1012397442), (21, 964188040), (24, 843664535), (28, 723141030), (30, 674931628), (31, 653159640), (35, 578512824), (40, 506198721), (42, 482094020), (56, 361570515), (60, 337465814), (62, 326579820), (70, 289256412), (84, 241047010), (93, 217719880), (105, 192837608), (120, 168732907), (124, 163289910), (140, 144628206), (155, 130631928), (168, 120523505), (186, 108859940), (210, 96418804), (217, 93308520), (248, 81644955), (280, 72314103), (310, 65315964), (372, 54429970), (420, 48209402), (434, 46654260), (465, 43543976), (620, 32657982), (651, 31102840), (744, 27214985), (840, 24104701), (868, 23327130), (930, 21771988), (1085, 18661704), (1240, 16328991), (1302, 15551420), (1736, 11663565), (1860, 10885994), (2170, 9330852), (2604, 7775710), (3255, 6220568), (3720, 5442997), (4340, 4665426), (5208, 3887855), (6510, 3110284), (8680, 2332713), (13020, 1555142), (26040, 777571)]