15787720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 38772720

約数和(自身を除く): 22985000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 313, 388, 485, 520, 626, 776, 970, 1252, 1261, 1565, 1940, 2504, 2522, 3130, 3880, 4069, 5044, 6260, 6305, 8138, 10088, 12520, 12610, 16276, 20345, 25220, 30361, 32552, 40690, 50440, 60722, 81380, 121444, 151805, 162760, 242888, 303610, 394693, 607220, 789386, 1214440, 1578772, 1973465, 3157544, 3946930, 7893860, 15787720]

約数ペア:

[(1, 15787720), (2, 7893860), (4, 3946930), (5, 3157544), (8, 1973465), (10, 1578772), (13, 1214440), (20, 789386), (26, 607220), (40, 394693), (52, 303610), (65, 242888), (97, 162760), (104, 151805), (130, 121444), (194, 81380), (260, 60722), (313, 50440), (388, 40690), (485, 32552), (520, 30361), (626, 25220), (776, 20345), (970, 16276), (1252, 12610), (1261, 12520), (1565, 10088), (1940, 8138), (2504, 6305), (2522, 6260), (3130, 5044), (3880, 4069)]