20349621890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2953501}}^1$

素因数の和:2953574

約数の個数: 32

約数和(自身を含む): 40191255216

約数和(自身を除く): 19841633326

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 2953501, 5907002, 14767505, 29535010, 38395513, 76791026, 156535553, 191977565, 313071106, 383955130, 782677765, 1565355530, 2034962189, 4069924378, 10174810945, 20349621890]

約数ペア:

[(1, 20349621890), (2, 10174810945), (5, 4069924378), (10, 2034962189), (13, 1565355530), (26, 782677765), (53, 383955130), (65, 313071106), (106, 191977565), (130, 156535553), (265, 76791026), (530, 38395513), (689, 29535010), (1378, 14767505), (3445, 5907002), (6890, 2953501)]