408857440

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12841}}^1$

素因数の和:13055

約数の個数: 48

約数和(自身を含む): 970855200

約数和(自身を除く): 561997760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 12841, 15920, 25682, 31840, 51364, 64205, 102728, 128410, 205456, 256820, 410912, 513640, 1027280, 2054560, 2555359, 5110718, 10221436, 12776795, 20442872, 25553590, 40885744, 51107180, 81771488, 102214360, 204428720, 408857440]

約数ペア:

[(1, 408857440), (2, 204428720), (4, 102214360), (5, 81771488), (8, 51107180), (10, 40885744), (16, 25553590), (20, 20442872), (32, 12776795), (40, 10221436), (80, 5110718), (160, 2555359), (199, 2054560), (398, 1027280), (796, 513640), (995, 410912), (1592, 256820), (1990, 205456), (3184, 128410), (3980, 102728), (6368, 64205), (7960, 51364), (12841, 31840), (15920, 25682)]