18804110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 40158720

約数和(自身を除く): 21354610

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 331, 437, 494, 598, 662, 874, 1235, 1495, 1655, 2185, 2470, 2990, 3310, 4303, 4370, 5681, 6289, 7613, 8606, 11362, 12578, 15226, 21515, 28405, 31445, 38065, 43030, 56810, 62890, 76130, 81757, 98969, 144647, 163514, 197938, 289294, 408785, 494845, 723235, 817570, 989690, 1446470, 1880411, 3760822, 9402055, 18804110]

約数ペア:

[(1, 18804110), (2, 9402055), (5, 3760822), (10, 1880411), (13, 1446470), (19, 989690), (23, 817570), (26, 723235), (38, 494845), (46, 408785), (65, 289294), (95, 197938), (115, 163514), (130, 144647), (190, 98969), (230, 81757), (247, 76130), (299, 62890), (331, 56810), (437, 43030), (494, 38065), (598, 31445), (662, 28405), (874, 21515), (1235, 15226), (1495, 12578), (1655, 11362), (2185, 8606), (2470, 7613), (2990, 6289), (3310, 5681), (4303, 4370)]