395655280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{290923}}^1$

素因数の和:290953

約数の個数: 40

約数和(自身を含む): 974013552

約数和(自身を除く): 578358272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 290923, 581846, 1163692, 1454615, 2327384, 2909230, 4654768, 4945691, 5818460, 9891382, 11636920, 19782764, 23273840, 24728455, 39565528, 49456910, 79131056, 98913820, 197827640, 395655280]

約数ペア:

[(1, 395655280), (2, 197827640), (4, 98913820), (5, 79131056), (8, 49456910), (10, 39565528), (16, 24728455), (17, 23273840), (20, 19782764), (34, 11636920), (40, 9891382), (68, 5818460), (80, 4945691), (85, 4654768), (136, 2909230), (170, 2327384), (272, 1454615), (340, 1163692), (680, 581846), (1360, 290923)]