401819240

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 918812160

約数和(自身を除く): 516992920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 223, 421, 428, 446, 535, 842, 856, 892, 1070, 1115, 1684, 1784, 2105, 2140, 2230, 3368, 4210, 4280, 4460, 8420, 8920, 16840, 23861, 45047, 47722, 90094, 93883, 95444, 119305, 180188, 187766, 190888, 225235, 238610, 360376, 375532, 450470, 469415, 477220, 751064, 900940, 938830, 954440, 1801880, 1877660, 3755320, 10045481, 20090962, 40181924, 50227405, 80363848, 100454810, 200909620, 401819240]

約数ペア:

[(1, 401819240), (2, 200909620), (4, 100454810), (5, 80363848), (8, 50227405), (10, 40181924), (20, 20090962), (40, 10045481), (107, 3755320), (214, 1877660), (223, 1801880), (421, 954440), (428, 938830), (446, 900940), (535, 751064), (842, 477220), (856, 469415), (892, 450470), (1070, 375532), (1115, 360376), (1684, 238610), (1784, 225235), (2105, 190888), (2140, 187766), (2230, 180188), (3368, 119305), (4210, 95444), (4280, 93883), (4460, 90094), (8420, 47722), (8920, 45047), (16840, 23861)]