15668920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 37908000

約数和(自身を除く): 22239080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 389, 424, 530, 760, 778, 1007, 1060, 1556, 1945, 2014, 2120, 3112, 3890, 4028, 5035, 7391, 7780, 8056, 10070, 14782, 15560, 20140, 20617, 29564, 36955, 40280, 41234, 59128, 73910, 82468, 103085, 147820, 164936, 206170, 295640, 391723, 412340, 783446, 824680, 1566892, 1958615, 3133784, 3917230, 7834460, 15668920]

約数ペア:

[(1, 15668920), (2, 7834460), (4, 3917230), (5, 3133784), (8, 1958615), (10, 1566892), (19, 824680), (20, 783446), (38, 412340), (40, 391723), (53, 295640), (76, 206170), (95, 164936), (106, 147820), (152, 103085), (190, 82468), (212, 73910), (265, 59128), (380, 41234), (389, 40280), (424, 36955), (530, 29564), (760, 20617), (778, 20140), (1007, 15560), (1060, 14782), (1556, 10070), (1945, 8056), (2014, 7780), (2120, 7391), (3112, 5035), (3890, 4028)]