397331376

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{636749}}^1$

素因数の和:636773

約数の個数: 40

約数和(自身を含む): 1105398000

約数和(自身を除く): 708066624

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 636749, 1273498, 1910247, 2546996, 3820494, 5093992, 7640988, 8277737, 10187984, 15281976, 16555474, 24833211, 30563952, 33110948, 49666422, 66221896, 99332844, 132443792, 198665688, 397331376]

約数ペア:

[(1, 397331376), (2, 198665688), (3, 132443792), (4, 99332844), (6, 66221896), (8, 49666422), (12, 33110948), (13, 30563952), (16, 24833211), (24, 16555474), (26, 15281976), (39, 10187984), (48, 8277737), (52, 7640988), (78, 5093992), (104, 3820494), (156, 2546996), (208, 1910247), (312, 1273498), (624, 636749)]