15915160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 38649600

約数和(自身を除く): 22734440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 487, 760, 817, 860, 974, 1634, 1720, 1948, 2435, 3268, 3896, 4085, 4870, 6536, 8170, 9253, 9740, 16340, 18506, 19480, 20941, 32680, 37012, 41882, 46265, 74024, 83764, 92530, 104705, 167528, 185060, 209410, 370120, 397879, 418820, 795758, 837640, 1591516, 1989395, 3183032, 3978790, 7957580, 15915160]

約数ペア:

[(1, 15915160), (2, 7957580), (4, 3978790), (5, 3183032), (8, 1989395), (10, 1591516), (19, 837640), (20, 795758), (38, 418820), (40, 397879), (43, 370120), (76, 209410), (86, 185060), (95, 167528), (152, 104705), (172, 92530), (190, 83764), (215, 74024), (344, 46265), (380, 41882), (430, 37012), (487, 32680), (760, 20941), (817, 19480), (860, 18506), (974, 16340), (1634, 9740), (1720, 9253), (1948, 8170), (2435, 6536), (3268, 4870), (3896, 4085)]