15918500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 39137280

約数和(自身を除く): 23218780

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 79, 100, 124, 125, 130, 155, 158, 250, 260, 310, 316, 325, 395, 403, 500, 620, 650, 775, 790, 806, 1027, 1300, 1550, 1580, 1612, 1625, 1975, 2015, 2054, 2449, 3100, 3250, 3875, 3950, 4030, 4108, 4898, 5135, 6500, 7750, 7900, 8060, 9796, 9875, 10075, 10270, 12245, 15500, 19750, 20150, 20540, 24490, 25675, 31837, 39500, 40300, 48980, 50375, 51350, 61225, 63674, 100750, 102700, 122450, 127348, 128375, 159185, 201500, 244900, 256750, 306125, 318370, 513500, 612250, 636740, 795925, 1224500, 1591850, 3183700, 3979625, 7959250, 15918500]

約数ペア:

[(1, 15918500), (2, 7959250), (4, 3979625), (5, 3183700), (10, 1591850), (13, 1224500), (20, 795925), (25, 636740), (26, 612250), (31, 513500), (50, 318370), (52, 306125), (62, 256750), (65, 244900), (79, 201500), (100, 159185), (124, 128375), (125, 127348), (130, 122450), (155, 102700), (158, 100750), (250, 63674), (260, 61225), (310, 51350), (316, 50375), (325, 48980), (395, 40300), (403, 39500), (500, 31837), (620, 25675), (650, 24490), (775, 20540), (790, 20150), (806, 19750), (1027, 15500), (1300, 12245), (1550, 10270), (1580, 10075), (1612, 9875), (1625, 9796), (1975, 8060), (2015, 7900), (2054, 7750), (2449, 6500), (3100, 5135), (3250, 4898), (3875, 4108), (3950, 4030)]