28380328

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 55485000

約数和(自身を除く): 27104672

約数列:

[1, 2, 4, 8, 29, 58, 116, 149, 232, 298, 596, 821, 1192, 1642, 3284, 4321, 6568, 8642, 17284, 23809, 34568, 47618, 95236, 122329, 190472, 244658, 489316, 978632, 3547541, 7095082, 14190164, 28380328]

約数ペア:

[(1, 28380328), (2, 14190164), (4, 7095082), (8, 3547541), (29, 978632), (58, 489316), (116, 244658), (149, 190472), (232, 122329), (298, 95236), (596, 47618), (821, 34568), (1192, 23809), (1642, 17284), (3284, 8642), (4321, 6568)]