400535240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:615

約数の個数: 128

約数和(自身を含む): 1077753600

約数和(自身を除く): 677218360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 107, 116, 140, 145, 203, 214, 232, 280, 290, 406, 428, 461, 535, 580, 749, 812, 856, 922, 1015, 1070, 1160, 1498, 1624, 1844, 2030, 2140, 2305, 2996, 3103, 3227, 3688, 3745, 4060, 4280, 4610, 5992, 6206, 6454, 7490, 8120, 9220, 12412, 12908, 13369, 14980, 15515, 16135, 18440, 21721, 24824, 25816, 26738, 29960, 31030, 32270, 43442, 49327, 53476, 62060, 64540, 66845, 86884, 93583, 98654, 106952, 108605, 124120, 129080, 133690, 173768, 187166, 197308, 217210, 246635, 267380, 345289, 374332, 394616, 434420, 467915, 493270, 534760, 690578, 748664, 868840, 935830, 986540, 1381156, 1430483, 1726445, 1871660, 1973080, 2762312, 2860966, 3452890, 3743320, 5721932, 6905780, 7152415, 10013381, 11443864, 13811560, 14304830, 20026762, 28609660, 40053524, 50066905, 57219320, 80107048, 100133810, 200267620, 400535240]

約数ペア:

[(1, 400535240), (2, 200267620), (4, 100133810), (5, 80107048), (7, 57219320), (8, 50066905), (10, 40053524), (14, 28609660), (20, 20026762), (28, 14304830), (29, 13811560), (35, 11443864), (40, 10013381), (56, 7152415), (58, 6905780), (70, 5721932), (107, 3743320), (116, 3452890), (140, 2860966), (145, 2762312), (203, 1973080), (214, 1871660), (232, 1726445), (280, 1430483), (290, 1381156), (406, 986540), (428, 935830), (461, 868840), (535, 748664), (580, 690578), (749, 534760), (812, 493270), (856, 467915), (922, 434420), (1015, 394616), (1070, 374332), (1160, 345289), (1498, 267380), (1624, 246635), (1844, 217210), (2030, 197308), (2140, 187166), (2305, 173768), (2996, 133690), (3103, 129080), (3227, 124120), (3688, 108605), (3745, 106952), (4060, 98654), (4280, 93583), (4610, 86884), (5992, 66845), (6206, 64540), (6454, 62060), (7490, 53476), (8120, 49327), (9220, 43442), (12412, 32270), (12908, 31030), (13369, 29960), (14980, 26738), (15515, 25816), (16135, 24824), (18440, 21721)]