12390080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1297

約数の個数: 56

約数和(自身を含む): 30480000

約数和(自身を除く): 18089920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1249, 1984, 2480, 2498, 4960, 4996, 6245, 9920, 9992, 12490, 19984, 24980, 38719, 39968, 49960, 77438, 79936, 99920, 154876, 193595, 199840, 309752, 387190, 399680, 619504, 774380, 1239008, 1548760, 2478016, 3097520, 6195040, 12390080]

約数ペア:

[(1, 12390080), (2, 6195040), (4, 3097520), (5, 2478016), (8, 1548760), (10, 1239008), (16, 774380), (20, 619504), (31, 399680), (32, 387190), (40, 309752), (62, 199840), (64, 193595), (80, 154876), (124, 99920), (155, 79936), (160, 77438), (248, 49960), (310, 39968), (320, 38719), (496, 24980), (620, 19984), (992, 12490), (1240, 9992), (1249, 9920), (1984, 6245), (2480, 4996), (2498, 4960)]