388889488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{4441}}^1$

素因数の和:4883

約数の個数: 40

約数和(自身を含む): 813543416

約数和(自身を除く): 424653928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 421, 842, 1684, 3368, 4441, 5473, 6736, 8882, 10946, 17764, 21892, 35528, 43784, 57733, 71056, 87568, 115466, 230932, 461864, 923728, 1869661, 3739322, 7478644, 14957288, 24305593, 29914576, 48611186, 97222372, 194444744, 388889488]

約数ペア:

[(1, 388889488), (2, 194444744), (4, 97222372), (8, 48611186), (13, 29914576), (16, 24305593), (26, 14957288), (52, 7478644), (104, 3739322), (208, 1869661), (421, 923728), (842, 461864), (1684, 230932), (3368, 115466), (4441, 87568), (5473, 71056), (6736, 57733), (8882, 43784), (10946, 35528), (17764, 21892)]