28036565540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{110563}}^1$

素因数の和:111012

約数の個数: 48

約数和(自身を含む): 60925186560

約数和(自身を除く): 32888621020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 409, 620, 818, 1636, 2045, 4090, 8180, 12679, 25358, 50716, 63395, 110563, 126790, 221126, 253580, 442252, 552815, 1105630, 2211260, 3427453, 6854906, 13709812, 17137265, 34274530, 45220267, 68549060, 90440534, 180881068, 226101335, 452202670, 904405340, 1401828277, 2803656554, 5607313108, 7009141385, 14018282770, 28036565540]

約数ペア:

[(1, 28036565540), (2, 14018282770), (4, 7009141385), (5, 5607313108), (10, 2803656554), (20, 1401828277), (31, 904405340), (62, 452202670), (124, 226101335), (155, 180881068), (310, 90440534), (409, 68549060), (620, 45220267), (818, 34274530), (1636, 17137265), (2045, 13709812), (4090, 6854906), (8180, 3427453), (12679, 2211260), (25358, 1105630), (50716, 552815), (63395, 442252), (110563, 253580), (126790, 221126)]