20403880060

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1\times {\mathrm{449}}^1$

素因数の和:1147

約数の個数: 96

約数和(自身を含む): 45113241600

約数和(自身を除く): 24709361540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 223, 230, 443, 446, 449, 460, 886, 892, 898, 1115, 1772, 1796, 2215, 2230, 2245, 4430, 4460, 4490, 5129, 8860, 8980, 10189, 10258, 10327, 20378, 20516, 20654, 25645, 40756, 41308, 50945, 51290, 51635, 98789, 100127, 101890, 102580, 103270, 197578, 198907, 200254, 203780, 206540, 395156, 397814, 400508, 493945, 500635, 795628, 987890, 994535, 1001270, 1975780, 1989070, 2002540, 2272147, 2302921, 3978140, 4544294, 4574861, 4605842, 9088588, 9149722, 9211684, 11360735, 11514605, 18299444, 22721470, 22874305, 23029210, 44356261, 45442940, 45748610, 46058420, 88712522, 91497220, 177425044, 221781305, 443562610, 887125220, 1020194003, 2040388006, 4080776012, 5100970015, 10201940030, 20403880060]

約数ペア:

[(1, 20403880060), (2, 10201940030), (4, 5100970015), (5, 4080776012), (10, 2040388006), (20, 1020194003), (23, 887125220), (46, 443562610), (92, 221781305), (115, 177425044), (223, 91497220), (230, 88712522), (443, 46058420), (446, 45748610), (449, 45442940), (460, 44356261), (886, 23029210), (892, 22874305), (898, 22721470), (1115, 18299444), (1772, 11514605), (1796, 11360735), (2215, 9211684), (2230, 9149722), (2245, 9088588), (4430, 4605842), (4460, 4574861), (4490, 4544294), (5129, 3978140), (8860, 2302921), (8980, 2272147), (10189, 2002540), (10258, 1989070), (10327, 1975780), (20378, 1001270), (20516, 994535), (20654, 987890), (25645, 795628), (40756, 500635), (41308, 493945), (50945, 400508), (51290, 397814), (51635, 395156), (98789, 206540), (100127, 203780), (101890, 200254), (102580, 198907), (103270, 197578)]