1990751100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{510449}}^1$

素因数の和:510479

約数の個数: 72

約数和(自身を含む): 6202988400

約数和(自身を除く): 4212237300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 510449, 1020898, 1531347, 2041796, 2552245, 3062694, 5104490, 6125388, 6635837, 7656735, 10208980, 12761225, 13271674, 15313470, 19907511, 25522450, 26543348, 30626940, 33179185, 38283675, 39815022, 51044900, 66358370, 76567350, 79630044, 99537555, 132716740, 153134700, 165895925, 199075110, 331791850, 398150220, 497687775, 663583700, 995375550, 1990751100]

約数ペア:

[(1, 1990751100), (2, 995375550), (3, 663583700), (4, 497687775), (5, 398150220), (6, 331791850), (10, 199075110), (12, 165895925), (13, 153134700), (15, 132716740), (20, 99537555), (25, 79630044), (26, 76567350), (30, 66358370), (39, 51044900), (50, 39815022), (52, 38283675), (60, 33179185), (65, 30626940), (75, 26543348), (78, 25522450), (100, 19907511), (130, 15313470), (150, 13271674), (156, 12761225), (195, 10208980), (260, 7656735), (300, 6635837), (325, 6125388), (390, 5104490), (650, 3062694), (780, 2552245), (975, 2041796), (1300, 1531347), (1950, 1020898), (3900, 510449)]