138795680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27983}}^1$

素因数の和:28029

約数の個数: 48

約数和(自身を含む): 338494464

約数和(自身を除く): 199698784

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, 27983, 55966, 111932, 139915, 223864, 279830, 447728, 559660, 867473, 895456, 1119320, 1734946, 2238640, 3469892, 4337365, 4477280, 6939784, 8674730, 13879568, 17349460, 27759136, 34698920, 69397840, 138795680]

約数ペア:

[(1, 138795680), (2, 69397840), (4, 34698920), (5, 27759136), (8, 17349460), (10, 13879568), (16, 8674730), (20, 6939784), (31, 4477280), (32, 4337365), (40, 3469892), (62, 2238640), (80, 1734946), (124, 1119320), (155, 895456), (160, 867473), (248, 559660), (310, 447728), (496, 279830), (620, 223864), (992, 139915), (1240, 111932), (2480, 55966), (4960, 27983)]