1640831790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4207261}}^1$

素因数の和:4207284

約数の個数: 32

約数和(自身を含む): 4240920096

約数和(自身を除く): 2600088306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 4207261, 8414522, 12621783, 21036305, 25243566, 42072610, 54694393, 63108915, 109388786, 126217830, 164083179, 273471965, 328166358, 546943930, 820415895, 1640831790]

約数ペア:

[(1, 1640831790), (2, 820415895), (3, 546943930), (5, 328166358), (6, 273471965), (10, 164083179), (13, 126217830), (15, 109388786), (26, 63108915), (30, 54694393), (39, 42072610), (65, 25243566), (78, 21036305), (130, 12621783), (195, 8414522), (390, 4207261)]