20565237160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1013}}^1\times {\mathrm{39041}}^1$

素因数の和:40078

約数の個数: 64

約数和(自身を含む): 49881620880

約数和(自身を除く): 29316383720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1013, 2026, 4052, 5065, 8104, 10130, 13169, 20260, 26338, 39041, 40520, 52676, 65845, 78082, 105352, 131690, 156164, 195205, 263380, 312328, 390410, 507533, 526760, 780820, 1015066, 1561640, 2030132, 2537665, 4060264, 5075330, 10150660, 20301320, 39548533, 79097066, 158194132, 197742665, 316388264, 395485330, 514130929, 790970660, 1028261858, 1581941320, 2056523716, 2570654645, 4113047432, 5141309290, 10282618580, 20565237160]

約数ペア:

[(1, 20565237160), (2, 10282618580), (4, 5141309290), (5, 4113047432), (8, 2570654645), (10, 2056523716), (13, 1581941320), (20, 1028261858), (26, 790970660), (40, 514130929), (52, 395485330), (65, 316388264), (104, 197742665), (130, 158194132), (260, 79097066), (520, 39548533), (1013, 20301320), (2026, 10150660), (4052, 5075330), (5065, 4060264), (8104, 2537665), (10130, 2030132), (13169, 1561640), (20260, 1015066), (26338, 780820), (39041, 526760), (40520, 507533), (52676, 390410), (65845, 312328), (78082, 263380), (105352, 195205), (131690, 156164)]