248722020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17491}}^1$

素因数の和:17585

約数の個数: 72

約数和(自身を含む): 764050560

約数和(自身を除く): 515328540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 17491, 34982, 52473, 69964, 87455, 104946, 157419, 174910, 209892, 262365, 314838, 349820, 524730, 629676, 787095, 1049460, 1381789, 1574190, 2763578, 3148380, 4145367, 5527156, 6908945, 8290734, 12436101, 13817890, 16581468, 20726835, 24872202, 27635780, 41453670, 49744404, 62180505, 82907340, 124361010, 248722020]

約数ペア:

[(1, 248722020), (2, 124361010), (3, 82907340), (4, 62180505), (5, 49744404), (6, 41453670), (9, 27635780), (10, 24872202), (12, 20726835), (15, 16581468), (18, 13817890), (20, 12436101), (30, 8290734), (36, 6908945), (45, 5527156), (60, 4145367), (79, 3148380), (90, 2763578), (158, 1574190), (180, 1381789), (237, 1049460), (316, 787095), (395, 629676), (474, 524730), (711, 349820), (790, 314838), (948, 262365), (1185, 209892), (1422, 174910), (1580, 157419), (2370, 104946), (2844, 87455), (3555, 69964), (4740, 52473), (7110, 34982), (14220, 17491)]