256540622

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1\times {\mathrm{823}}^1$

素因数の和:1488

約数の個数: 32

約数和(自身を含む): 437445120

約数和(自身を除く): 180904498

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 631, 823, 1262, 1646, 8203, 10699, 11989, 15637, 16406, 21398, 23978, 31274, 155857, 203281, 311714, 406562, 519313, 1038626, 6751069, 9866947, 13502138, 19733894, 128270311, 256540622]

約数ペア:

[(1, 256540622), (2, 128270311), (13, 19733894), (19, 13502138), (26, 9866947), (38, 6751069), (247, 1038626), (494, 519313), (631, 406562), (823, 311714), (1262, 203281), (1646, 155857), (8203, 31274), (10699, 23978), (11989, 21398), (15637, 16406)]