15821560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 22669640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 439, 530, 680, 878, 901, 1060, 1756, 1802, 2120, 2195, 3512, 3604, 4390, 4505, 7208, 7463, 8780, 9010, 14926, 17560, 18020, 23267, 29852, 36040, 37315, 46534, 59704, 74630, 93068, 116335, 149260, 186136, 232670, 298520, 395539, 465340, 791078, 930680, 1582156, 1977695, 3164312, 3955390, 7910780, 15821560]

約数ペア:

[(1, 15821560), (2, 7910780), (4, 3955390), (5, 3164312), (8, 1977695), (10, 1582156), (17, 930680), (20, 791078), (34, 465340), (40, 395539), (53, 298520), (68, 232670), (85, 186136), (106, 149260), (136, 116335), (170, 93068), (212, 74630), (265, 59704), (340, 46534), (424, 37315), (439, 36040), (530, 29852), (680, 23267), (878, 18020), (901, 17560), (1060, 14926), (1756, 9010), (1802, 8780), (2120, 7463), (2195, 7208), (3512, 4505), (3604, 4390)]