399776498

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{79}}^1\times {\mathrm{1901}}^1$

素因数の和:2015

約数の個数: 32

約数和(自身を含む): 668286720

約数和(自身を除く): 268510222

約数列:

[1, 2, 11, 22, 79, 121, 158, 242, 869, 1331, 1738, 1901, 2662, 3802, 9559, 19118, 20911, 41822, 105149, 150179, 210298, 230021, 300358, 460042, 1651969, 2530231, 3303938, 5060462, 18171659, 36343318, 199888249, 399776498]

約数ペア:

[(1, 399776498), (2, 199888249), (11, 36343318), (22, 18171659), (79, 5060462), (121, 3303938), (158, 2530231), (242, 1651969), (869, 460042), (1331, 300358), (1738, 230021), (1901, 210298), (2662, 150179), (3802, 105149), (9559, 41822), (19118, 20911)]