664752400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{127837}}^1$

素因数の和:127868

約数の個数: 60

約数和(自身を含む): 1719932452

約数和(自身を除く): 1055180052

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 127837, 255674, 511348, 639185, 1022696, 1278370, 1661881, 2045392, 2556740, 3195925, 3323762, 5113480, 6391850, 6647524, 8309405, 10226960, 12783700, 13295048, 16618810, 25567400, 26590096, 33237620, 41547025, 51134800, 66475240, 83094050, 132950480, 166188100, 332376200, 664752400]

約数ペア:

[(1, 664752400), (2, 332376200), (4, 166188100), (5, 132950480), (8, 83094050), (10, 66475240), (13, 51134800), (16, 41547025), (20, 33237620), (25, 26590096), (26, 25567400), (40, 16618810), (50, 13295048), (52, 12783700), (65, 10226960), (80, 8309405), (100, 6647524), (104, 6391850), (130, 5113480), (200, 3323762), (208, 3195925), (260, 2556740), (325, 2045392), (400, 1661881), (520, 1278370), (650, 1022696), (1040, 639185), (1300, 511348), (2600, 255674), (5200, 127837)]