15905780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 36723456

約数和(自身を除く): 20817676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 367, 394, 734, 788, 985, 1468, 1835, 1970, 2167, 3670, 3940, 4037, 4334, 7340, 8074, 8668, 10835, 16148, 20185, 21670, 40370, 43340, 72299, 80740, 144598, 289196, 361495, 722990, 795289, 1445980, 1590578, 3181156, 3976445, 7952890, 15905780]

約数ペア:

[(1, 15905780), (2, 7952890), (4, 3976445), (5, 3181156), (10, 1590578), (11, 1445980), (20, 795289), (22, 722990), (44, 361495), (55, 289196), (110, 144598), (197, 80740), (220, 72299), (367, 43340), (394, 40370), (734, 21670), (788, 20185), (985, 16148), (1468, 10835), (1835, 8668), (1970, 8074), (2167, 7340), (3670, 4334), (3940, 4037)]