149175820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 318880800

約数和(自身を除く): 169704980

約数列:

[1, 2, 4, 5, 10, 20, 113, 149, 226, 298, 443, 452, 565, 596, 745, 886, 1130, 1490, 1772, 2215, 2260, 2980, 4430, 8860, 16837, 33674, 50059, 66007, 67348, 84185, 100118, 132014, 168370, 200236, 250295, 264028, 330035, 336740, 500590, 660070, 1001180, 1320140, 7458791, 14917582, 29835164, 37293955, 74587910, 149175820]

約数ペア:

[(1, 149175820), (2, 74587910), (4, 37293955), (5, 29835164), (10, 14917582), (20, 7458791), (113, 1320140), (149, 1001180), (226, 660070), (298, 500590), (443, 336740), (452, 330035), (565, 264028), (596, 250295), (745, 200236), (886, 168370), (1130, 132014), (1490, 100118), (1772, 84185), (2215, 67348), (2260, 66007), (2980, 50059), (4430, 33674), (8860, 16837)]