393948620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1411

約数の個数: 96

約数和(自身を含む): 945240576

約数和(自身を除く): 551291956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 37, 52, 62, 65, 74, 124, 130, 148, 155, 185, 260, 310, 370, 403, 481, 620, 740, 806, 962, 1147, 1321, 1612, 1924, 2015, 2294, 2405, 2642, 4030, 4588, 4810, 5284, 5735, 6605, 8060, 9620, 11470, 13210, 14911, 17173, 22940, 26420, 29822, 34346, 40951, 48877, 59644, 68692, 74555, 81902, 85865, 97754, 149110, 163804, 171730, 195508, 204755, 244385, 298220, 343460, 409510, 488770, 532363, 635401, 819020, 977540, 1064726, 1270802, 1515187, 2129452, 2541604, 2661815, 3030374, 3177005, 5323630, 6060748, 6354010, 7575935, 10647260, 12708020, 15151870, 19697431, 30303740, 39394862, 78789724, 98487155, 196974310, 393948620]

約数ペア:

[(1, 393948620), (2, 196974310), (4, 98487155), (5, 78789724), (10, 39394862), (13, 30303740), (20, 19697431), (26, 15151870), (31, 12708020), (37, 10647260), (52, 7575935), (62, 6354010), (65, 6060748), (74, 5323630), (124, 3177005), (130, 3030374), (148, 2661815), (155, 2541604), (185, 2129452), (260, 1515187), (310, 1270802), (370, 1064726), (403, 977540), (481, 819020), (620, 635401), (740, 532363), (806, 488770), (962, 409510), (1147, 343460), (1321, 298220), (1612, 244385), (1924, 204755), (2015, 195508), (2294, 171730), (2405, 163804), (2642, 149110), (4030, 97754), (4588, 85865), (4810, 81902), (5284, 74555), (5735, 68692), (6605, 59644), (8060, 48877), (9620, 40951), (11470, 34346), (13210, 29822), (14911, 26420), (17173, 22940)]