18813308540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{528167}}^1$

素因数の和:528326

約数の個数: 48

約数和(自身を含む): 42857664192

約数和(自身を除く): 24044355652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1370, 1781, 2740, 3562, 7124, 8905, 17810, 35620, 528167, 1056334, 2112668, 2640835, 5281670, 6866171, 10563340, 13732342, 27464684, 34330855, 68661710, 72358879, 137323420, 144717758, 289435516, 361794395, 723588790, 940665427, 1447177580, 1881330854, 3762661708, 4703327135, 9406654270, 18813308540]

約数ペア:

[(1, 18813308540), (2, 9406654270), (4, 4703327135), (5, 3762661708), (10, 1881330854), (13, 1447177580), (20, 940665427), (26, 723588790), (52, 361794395), (65, 289435516), (130, 144717758), (137, 137323420), (260, 72358879), (274, 68661710), (548, 34330855), (685, 27464684), (1370, 13732342), (1781, 10563340), (2740, 6866171), (3562, 5281670), (7124, 2640835), (8905, 2112668), (17810, 1056334), (35620, 528167)]