81941360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60251}}^1$

素因数の和:60281

約数の個数: 40

約数和(自身を含む): 201723696

約数和(自身を除く): 119782336

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 60251, 120502, 241004, 301255, 482008, 602510, 964016, 1024267, 1205020, 2048534, 2410040, 4097068, 4820080, 5121335, 8194136, 10242670, 16388272, 20485340, 40970680, 81941360]

約数ペア:

[(1, 81941360), (2, 40970680), (4, 20485340), (5, 16388272), (8, 10242670), (10, 8194136), (16, 5121335), (17, 4820080), (20, 4097068), (34, 2410040), (40, 2048534), (68, 1205020), (80, 1024267), (85, 964016), (136, 602510), (170, 482008), (272, 301255), (340, 241004), (680, 120502), (1360, 60251)]