42890410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^2$

素因数の和:263

約数の個数: 36

約数和(自身を含む): 82234278

約数和(自身を除く): 39343868

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 361, 545, 722, 1090, 1805, 2071, 3610, 4142, 10355, 11881, 20710, 23762, 39349, 59405, 78698, 118810, 196745, 225739, 393490, 451478, 1128695, 2257390, 4289041, 8578082, 21445205, 42890410]

約数ペア:

[(1, 42890410), (2, 21445205), (5, 8578082), (10, 4289041), (19, 2257390), (38, 1128695), (95, 451478), (109, 393490), (190, 225739), (218, 196745), (361, 118810), (545, 78698), (722, 59405), (1090, 39349), (1805, 23762), (2071, 20710), (3610, 11881), (4142, 10355)]