15121180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^3\times {\mathrm{31}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 33949440

約数和(自身を除く): 18828260

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 841, 899, 1682, 1798, 3364, 3596, 4205, 4495, 8410, 8990, 16820, 17980, 24389, 26071, 48778, 52142, 97556, 104284, 121945, 130355, 243890, 260710, 487780, 521420, 756059, 1512118, 3024236, 3780295, 7560590, 15121180]

約数ペア:

[(1, 15121180), (2, 7560590), (4, 3780295), (5, 3024236), (10, 1512118), (20, 756059), (29, 521420), (31, 487780), (58, 260710), (62, 243890), (116, 130355), (124, 121945), (145, 104284), (155, 97556), (290, 52142), (310, 48778), (580, 26071), (620, 24389), (841, 17980), (899, 16820), (1682, 8990), (1798, 8410), (3364, 4495), (3596, 4205)]