25309640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20411}}^1$

素因数の和:20453

約数の個数: 32

約数和(自身を含む): 58786560

約数和(自身を除く): 33476920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 20411, 40822, 81644, 102055, 163288, 204110, 408220, 632741, 816440, 1265482, 2530964, 3163705, 5061928, 6327410, 12654820, 25309640]

約数ペア:

[(1, 25309640), (2, 12654820), (4, 6327410), (5, 5061928), (8, 3163705), (10, 2530964), (20, 1265482), (31, 816440), (40, 632741), (62, 408220), (124, 204110), (155, 163288), (248, 102055), (310, 81644), (620, 40822), (1240, 20411)]