320475350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^3$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 650166720

約数和(自身を除く): 329691370

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 395, 650, 790, 1027, 1975, 2054, 3950, 5135, 6241, 10270, 12482, 25675, 31205, 51350, 62410, 81133, 156025, 162266, 312050, 405665, 493039, 811330, 986078, 2028325, 2465195, 4056650, 4930390, 6409507, 12325975, 12819014, 24651950, 32047535, 64095070, 160237675, 320475350]

約数ペア:

[(1, 320475350), (2, 160237675), (5, 64095070), (10, 32047535), (13, 24651950), (25, 12819014), (26, 12325975), (50, 6409507), (65, 4930390), (79, 4056650), (130, 2465195), (158, 2028325), (325, 986078), (395, 811330), (650, 493039), (790, 405665), (1027, 312050), (1975, 162266), (2054, 156025), (3950, 81133), (5135, 62410), (6241, 51350), (10270, 31205), (12482, 25675)]