20760520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1627}}^1$

素因数の和:1678

約数の個数: 64

約数和(自身を含む): 52747200

約数和(自身を除く): 31986680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 1627, 2552, 3190, 3254, 6380, 6508, 8135, 12760, 13016, 16270, 17897, 32540, 35794, 47183, 65080, 71588, 89485, 94366, 143176, 178970, 188732, 235915, 357940, 377464, 471830, 519013, 715880, 943660, 1038026, 1887320, 2076052, 2595065, 4152104, 5190130, 10380260, 20760520]

約数ペア:

[(1, 20760520), (2, 10380260), (4, 5190130), (5, 4152104), (8, 2595065), (10, 2076052), (11, 1887320), (20, 1038026), (22, 943660), (29, 715880), (40, 519013), (44, 471830), (55, 377464), (58, 357940), (88, 235915), (110, 188732), (116, 178970), (145, 143176), (220, 94366), (232, 89485), (290, 71588), (319, 65080), (440, 47183), (580, 35794), (638, 32540), (1160, 17897), (1276, 16270), (1595, 13016), (1627, 12760), (2552, 8135), (3190, 6508), (3254, 6380)]