18672550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1297

約数の個数: 48

約数和(自身を含む): 39060000

約数和(自身を除く): 20387450

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 115, 130, 230, 299, 325, 575, 598, 650, 1150, 1249, 1495, 2498, 2990, 6245, 7475, 12490, 14950, 16237, 28727, 31225, 32474, 57454, 62450, 81185, 143635, 162370, 287270, 373451, 405925, 718175, 746902, 811850, 1436350, 1867255, 3734510, 9336275, 18672550]

約数ペア:

[(1, 18672550), (2, 9336275), (5, 3734510), (10, 1867255), (13, 1436350), (23, 811850), (25, 746902), (26, 718175), (46, 405925), (50, 373451), (65, 287270), (115, 162370), (130, 143635), (230, 81185), (299, 62450), (325, 57454), (575, 32474), (598, 31225), (650, 28727), (1150, 16237), (1249, 14950), (1495, 12490), (2498, 7475), (2990, 6245)]