19437620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 23237068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 293, 310, 428, 535, 586, 620, 1070, 1172, 1465, 2140, 2930, 3317, 5860, 6634, 9083, 13268, 16585, 18166, 31351, 33170, 36332, 45415, 62702, 66340, 90830, 125404, 156755, 181660, 313510, 627020, 971881, 1943762, 3887524, 4859405, 9718810, 19437620]

約数ペア:

[(1, 19437620), (2, 9718810), (4, 4859405), (5, 3887524), (10, 1943762), (20, 971881), (31, 627020), (62, 313510), (107, 181660), (124, 156755), (155, 125404), (214, 90830), (293, 66340), (310, 62702), (428, 45415), (535, 36332), (586, 33170), (620, 31351), (1070, 18166), (1172, 16585), (1465, 13268), (2140, 9083), (2930, 6634), (3317, 5860)]