20372170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 45997056

約数和(自身を除く): 25624886

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 182, 305, 367, 427, 455, 610, 734, 793, 854, 910, 1586, 1835, 2135, 2569, 3670, 3965, 4270, 4771, 5138, 5551, 7930, 9542, 11102, 12845, 22387, 23855, 25690, 27755, 33397, 44774, 47710, 55510, 66794, 111935, 156709, 166985, 223870, 291031, 313418, 333970, 582062, 783545, 1455155, 1567090, 2037217, 2910310, 4074434, 10186085, 20372170]

約数ペア:

[(1, 20372170), (2, 10186085), (5, 4074434), (7, 2910310), (10, 2037217), (13, 1567090), (14, 1455155), (26, 783545), (35, 582062), (61, 333970), (65, 313418), (70, 291031), (91, 223870), (122, 166985), (130, 156709), (182, 111935), (305, 66794), (367, 55510), (427, 47710), (455, 44774), (610, 33397), (734, 27755), (793, 25690), (854, 23855), (910, 22387), (1586, 12845), (1835, 11102), (2135, 9542), (2569, 7930), (3670, 5551), (3965, 5138), (4270, 4771)]