25904840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1662

約数の個数: 64

約数和(自身を含む): 64834560

約数和(自身を除く): 38929720

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, 1607, 1612, 2015, 3214, 3224, 4030, 6428, 8035, 8060, 12856, 16070, 16120, 20891, 32140, 41782, 49817, 64280, 83564, 99634, 104455, 167128, 199268, 208910, 249085, 398536, 417820, 498170, 647621, 835640, 996340, 1295242, 1992680, 2590484, 3238105, 5180968, 6476210, 12952420, 25904840]

約数ペア:

[(1, 25904840), (2, 12952420), (4, 6476210), (5, 5180968), (8, 3238105), (10, 2590484), (13, 1992680), (20, 1295242), (26, 996340), (31, 835640), (40, 647621), (52, 498170), (62, 417820), (65, 398536), (104, 249085), (124, 208910), (130, 199268), (155, 167128), (248, 104455), (260, 99634), (310, 83564), (403, 64280), (520, 49817), (620, 41782), (806, 32140), (1240, 20891), (1607, 16120), (1612, 16070), (2015, 12856), (3214, 8060), (3224, 8035), (4030, 6428)]