202118960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1291}}^1$

素因数の和:1426

約数の個数: 80

約数和(自身を含む): 499848960

約数和(自身を除く): 297730000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 103, 152, 190, 206, 304, 380, 412, 515, 760, 824, 1030, 1291, 1520, 1648, 1957, 2060, 2582, 3914, 4120, 5164, 6455, 7828, 8240, 9785, 10328, 12910, 15656, 19570, 20656, 24529, 25820, 31312, 39140, 49058, 51640, 78280, 98116, 103280, 122645, 132973, 156560, 196232, 245290, 265946, 392464, 490580, 531892, 664865, 981160, 1063784, 1329730, 1962320, 2127568, 2526487, 2659460, 5052974, 5318920, 10105948, 10637840, 12632435, 20211896, 25264870, 40423792, 50529740, 101059480, 202118960]

約数ペア:

[(1, 202118960), (2, 101059480), (4, 50529740), (5, 40423792), (8, 25264870), (10, 20211896), (16, 12632435), (19, 10637840), (20, 10105948), (38, 5318920), (40, 5052974), (76, 2659460), (80, 2526487), (95, 2127568), (103, 1962320), (152, 1329730), (190, 1063784), (206, 981160), (304, 664865), (380, 531892), (412, 490580), (515, 392464), (760, 265946), (824, 245290), (1030, 196232), (1291, 156560), (1520, 132973), (1648, 122645), (1957, 103280), (2060, 98116), (2582, 78280), (3914, 51640), (4120, 49058), (5164, 39140), (6455, 31312), (7828, 25820), (8240, 24529), (9785, 20656), (10328, 19570), (12910, 15656)]