256118408

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{351811}}^1$

素因数の和:351837

約数の個数: 32

約数和(自身を含む): 591044160

約数和(自身を除く): 334925752

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 351811, 703622, 1407244, 2462677, 2814488, 4573543, 4925354, 9147086, 9850708, 18294172, 19701416, 32014801, 36588344, 64029602, 128059204, 256118408]

約数ペア:

[(1, 256118408), (2, 128059204), (4, 64029602), (7, 36588344), (8, 32014801), (13, 19701416), (14, 18294172), (26, 9850708), (28, 9147086), (52, 4925354), (56, 4573543), (91, 2814488), (104, 2462677), (182, 1407244), (364, 703622), (728, 351811)]