15328915

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 23392800

約数和(自身を除く): 8063885

約数列:

[1, 5, 7, 19, 35, 37, 49, 89, 95, 133, 185, 245, 259, 445, 623, 665, 703, 931, 1295, 1691, 1813, 3115, 3293, 3515, 4361, 4655, 4921, 8455, 9065, 11837, 16465, 21805, 23051, 24605, 34447, 59185, 62567, 82859, 115255, 161357, 172235, 312835, 414295, 437969, 806785, 2189845, 3065783, 15328915]

約数ペア:

[(1, 15328915), (5, 3065783), (7, 2189845), (19, 806785), (35, 437969), (37, 414295), (49, 312835), (89, 172235), (95, 161357), (133, 115255), (185, 82859), (245, 62567), (259, 59185), (445, 34447), (623, 24605), (665, 23051), (703, 21805), (931, 16465), (1295, 11837), (1691, 9065), (1813, 8455), (3115, 4921), (3293, 4655), (3515, 4361)]