138716320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27967}}^1$

素因数の和:28013

約数の個数: 48

約数和(自身を含む): 338300928

約数和(自身を除く): 199584608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 27967, 55934, 111868, 139835, 223736, 279670, 447472, 559340, 866977, 894944, 1118680, 1733954, 2237360, 3467908, 4334885, 4474720, 6935816, 8669770, 13871632, 17339540, 27743264, 34679080, 69358160, 138716320]

約数ペア:

[(1, 138716320), (2, 69358160), (4, 34679080), (5, 27743264), (8, 17339540), (10, 13871632), (16, 8669770), (20, 6935816), (31, 4474720), (32, 4334885), (40, 3467908), (62, 2237360), (80, 1733954), (124, 1118680), (155, 894944), (160, 866977), (248, 559340), (310, 447472), (496, 279670), (620, 223736), (992, 139835), (1240, 111868), (2480, 55934), (4960, 27967)]