12734800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 34442240

約数和(自身を除く): 21707440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 79, 80, 100, 104, 124, 130, 155, 158, 200, 208, 248, 260, 310, 316, 325, 395, 400, 403, 496, 520, 620, 632, 650, 775, 790, 806, 1027, 1040, 1240, 1264, 1300, 1550, 1580, 1612, 1975, 2015, 2054, 2449, 2480, 2600, 3100, 3160, 3224, 3950, 4030, 4108, 4898, 5135, 5200, 6200, 6320, 6448, 7900, 8060, 8216, 9796, 10075, 10270, 12245, 12400, 15800, 16120, 16432, 19592, 20150, 20540, 24490, 25675, 31600, 31837, 32240, 39184, 40300, 41080, 48980, 51350, 61225, 63674, 80600, 82160, 97960, 102700, 122450, 127348, 159185, 161200, 195920, 205400, 244900, 254696, 318370, 410800, 489800, 509392, 636740, 795925, 979600, 1273480, 1591850, 2546960, 3183700, 6367400, 12734800]

約数ペア:

[(1, 12734800), (2, 6367400), (4, 3183700), (5, 2546960), (8, 1591850), (10, 1273480), (13, 979600), (16, 795925), (20, 636740), (25, 509392), (26, 489800), (31, 410800), (40, 318370), (50, 254696), (52, 244900), (62, 205400), (65, 195920), (79, 161200), (80, 159185), (100, 127348), (104, 122450), (124, 102700), (130, 97960), (155, 82160), (158, 80600), (200, 63674), (208, 61225), (248, 51350), (260, 48980), (310, 41080), (316, 40300), (325, 39184), (395, 32240), (400, 31837), (403, 31600), (496, 25675), (520, 24490), (620, 20540), (632, 20150), (650, 19592), (775, 16432), (790, 16120), (806, 15800), (1027, 12400), (1040, 12245), (1240, 10270), (1264, 10075), (1300, 9796), (1550, 8216), (1580, 8060), (1612, 7900), (1975, 6448), (2015, 6320), (2054, 6200), (2449, 5200), (2480, 5135), (2600, 4898), (3100, 4108), (3160, 4030), (3224, 3950)]