256445488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{30071}}^1$

素因数の和:30133

約数の個数: 40

約数和(自身を含む): 548152416

約数和(自身を除く): 291706928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 4264, 8528, 30071, 60142, 120284, 240568, 390923, 481136, 781846, 1232911, 1563692, 2465822, 3127384, 4931644, 6254768, 9863288, 16027843, 19726576, 32055686, 64111372, 128222744, 256445488]

約数ペア:

[(1, 256445488), (2, 128222744), (4, 64111372), (8, 32055686), (13, 19726576), (16, 16027843), (26, 9863288), (41, 6254768), (52, 4931644), (82, 3127384), (104, 2465822), (164, 1563692), (208, 1232911), (328, 781846), (533, 481136), (656, 390923), (1066, 240568), (2132, 120284), (4264, 60142), (8528, 30071)]