87840220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 213429888

約数和(自身を除く): 125589668

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 37, 46, 52, 65, 74, 92, 115, 130, 148, 185, 230, 260, 299, 370, 397, 460, 481, 598, 740, 794, 851, 962, 1196, 1495, 1588, 1702, 1924, 1985, 2405, 2990, 3404, 3970, 4255, 4810, 5161, 5980, 7940, 8510, 9131, 9620, 10322, 11063, 14689, 17020, 18262, 20644, 22126, 25805, 29378, 36524, 44252, 45655, 51610, 55315, 58756, 73445, 91310, 103220, 110630, 118703, 146890, 182620, 190957, 221260, 237406, 293780, 337847, 381914, 474812, 593515, 675694, 763828, 954785, 1187030, 1351388, 1689235, 1909570, 2374060, 3378470, 3819140, 4392011, 6756940, 8784022, 17568044, 21960055, 43920110, 87840220]

約数ペア:

[(1, 87840220), (2, 43920110), (4, 21960055), (5, 17568044), (10, 8784022), (13, 6756940), (20, 4392011), (23, 3819140), (26, 3378470), (37, 2374060), (46, 1909570), (52, 1689235), (65, 1351388), (74, 1187030), (92, 954785), (115, 763828), (130, 675694), (148, 593515), (185, 474812), (230, 381914), (260, 337847), (299, 293780), (370, 237406), (397, 221260), (460, 190957), (481, 182620), (598, 146890), (740, 118703), (794, 110630), (851, 103220), (962, 91310), (1196, 73445), (1495, 58756), (1588, 55315), (1702, 51610), (1924, 45655), (1985, 44252), (2405, 36524), (2990, 29378), (3404, 25805), (3970, 22126), (4255, 20644), (4810, 18262), (5161, 17020), (5980, 14689), (7940, 11063), (8510, 10322), (9131, 9620)]