138767408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21521}}^1$

素因数の和:21573

約数の個数: 40

約数和(自身を含む): 298897536

約数和(自身を除く): 160130128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 21521, 43042, 86084, 172168, 279773, 344336, 559546, 667151, 1119092, 1334302, 2238184, 2668604, 4476368, 5337208, 8672963, 10674416, 17345926, 34691852, 69383704, 138767408]

約数ペア:

[(1, 138767408), (2, 69383704), (4, 34691852), (8, 17345926), (13, 10674416), (16, 8672963), (26, 5337208), (31, 4476368), (52, 2668604), (62, 2238184), (104, 1334302), (124, 1119092), (208, 667151), (248, 559546), (403, 344336), (496, 279773), (806, 172168), (1612, 86084), (3224, 43042), (6448, 21521)]