128605256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{42641}}^1$

素因数の和:42689

約数の個数: 32

約数和(自身を含む): 268644600

約数和(自身を除く): 140039344

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 42641, 85282, 170564, 341128, 554333, 1108666, 1236589, 2217332, 2473178, 4434664, 4946356, 9892712, 16075657, 32151314, 64302628, 128605256]

約数ペア:

[(1, 128605256), (2, 64302628), (4, 32151314), (8, 16075657), (13, 9892712), (26, 4946356), (29, 4434664), (52, 2473178), (58, 2217332), (104, 1236589), (116, 1108666), (232, 554333), (377, 341128), (754, 170564), (1508, 85282), (3016, 42641)]