20841634720

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1\times {\mathrm{4861}}^1$

素因数の和:5214

約数の個数: 96

約数和(自身を含む): 49871517696

約数和(自身を除く): 29029882976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 211, 254, 422, 508, 635, 844, 1016, 1055, 1270, 1688, 2032, 2110, 2540, 3376, 4064, 4220, 4861, 5080, 6752, 8440, 9722, 10160, 16880, 19444, 20320, 24305, 26797, 33760, 38888, 48610, 53594, 77776, 97220, 107188, 133985, 155552, 194440, 214376, 267970, 388880, 428752, 535940, 617347, 777760, 857504, 1025671, 1071880, 1234694, 2051342, 2143760, 2469388, 3086735, 4102684, 4287520, 4938776, 5128355, 6173470, 8205368, 9877552, 10256710, 12346940, 16410736, 19755104, 20513420, 24693880, 32821472, 41026840, 49387760, 82053680, 98775520, 130260217, 164107360, 260520434, 521040868, 651301085, 1042081736, 1302602170, 2084163472, 2605204340, 4168326944, 5210408680, 10420817360, 20841634720]

約数ペア:

[(1, 20841634720), (2, 10420817360), (4, 5210408680), (5, 4168326944), (8, 2605204340), (10, 2084163472), (16, 1302602170), (20, 1042081736), (32, 651301085), (40, 521040868), (80, 260520434), (127, 164107360), (160, 130260217), (211, 98775520), (254, 82053680), (422, 49387760), (508, 41026840), (635, 32821472), (844, 24693880), (1016, 20513420), (1055, 19755104), (1270, 16410736), (1688, 12346940), (2032, 10256710), (2110, 9877552), (2540, 8205368), (3376, 6173470), (4064, 5128355), (4220, 4938776), (4861, 4287520), (5080, 4102684), (6752, 3086735), (8440, 2469388), (9722, 2143760), (10160, 2051342), (16880, 1234694), (19444, 1071880), (20320, 1025671), (24305, 857504), (26797, 777760), (33760, 617347), (38888, 535940), (48610, 428752), (53594, 388880), (77776, 267970), (97220, 214376), (107188, 194440), (133985, 155552)]