25335680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1327

約数の個数: 64

約数和(自身を含む): 62570880

約数和(自身を除く): 37235200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1277, 1984, 2480, 2554, 3968, 4960, 5108, 6385, 9920, 10216, 12770, 19840, 20432, 25540, 39587, 40864, 51080, 79174, 81728, 102160, 158348, 163456, 197935, 204320, 316696, 395870, 408640, 633392, 791740, 817280, 1266784, 1583480, 2533568, 3166960, 5067136, 6333920, 12667840, 25335680]

約数ペア:

[(1, 25335680), (2, 12667840), (4, 6333920), (5, 5067136), (8, 3166960), (10, 2533568), (16, 1583480), (20, 1266784), (31, 817280), (32, 791740), (40, 633392), (62, 408640), (64, 395870), (80, 316696), (124, 204320), (128, 197935), (155, 163456), (160, 158348), (248, 102160), (310, 81728), (320, 79174), (496, 51080), (620, 40864), (640, 39587), (992, 25540), (1240, 20432), (1277, 19840), (1984, 12770), (2480, 10216), (2554, 9920), (3968, 6385), (4960, 5108)]