25453480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1634

約数の個数: 64

約数和(自身を含む): 63705600

約数和(自身を除く): 38252120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1579, 1612, 2015, 3158, 3224, 4030, 6316, 7895, 8060, 12632, 15790, 16120, 20527, 31580, 41054, 48949, 63160, 82108, 97898, 102635, 164216, 195796, 205270, 244745, 391592, 410540, 489490, 636337, 821080, 978980, 1272674, 1957960, 2545348, 3181685, 5090696, 6363370, 12726740, 25453480]

約数ペア:

[(1, 25453480), (2, 12726740), (4, 6363370), (5, 5090696), (8, 3181685), (10, 2545348), (13, 1957960), (20, 1272674), (26, 978980), (31, 821080), (40, 636337), (52, 489490), (62, 410540), (65, 391592), (104, 244745), (124, 205270), (130, 195796), (155, 164216), (248, 102635), (260, 97898), (310, 82108), (403, 63160), (520, 48949), (620, 41054), (806, 31580), (1240, 20527), (1579, 16120), (1612, 15790), (2015, 12632), (3158, 8060), (3224, 7895), (4030, 6316)]