20932120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 51956640

約数和(自身を除く): 31024520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 421, 440, 452, 565, 842, 904, 1130, 1243, 1684, 2105, 2260, 2486, 3368, 4210, 4520, 4631, 4972, 6215, 8420, 9262, 9944, 12430, 16840, 18524, 23155, 24860, 37048, 46310, 47573, 49720, 92620, 95146, 185240, 190292, 237865, 380584, 475730, 523303, 951460, 1046606, 1902920, 2093212, 2616515, 4186424, 5233030, 10466060, 20932120]

約数ペア:

[(1, 20932120), (2, 10466060), (4, 5233030), (5, 4186424), (8, 2616515), (10, 2093212), (11, 1902920), (20, 1046606), (22, 951460), (40, 523303), (44, 475730), (55, 380584), (88, 237865), (110, 190292), (113, 185240), (220, 95146), (226, 92620), (421, 49720), (440, 47573), (452, 46310), (565, 37048), (842, 24860), (904, 23155), (1130, 18524), (1243, 16840), (1684, 12430), (2105, 9944), (2260, 9262), (2486, 8420), (3368, 6215), (4210, 4972), (4520, 4631)]