15118780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 34292160

約数和(自身を除く): 19173380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 839, 901, 1060, 1678, 1802, 3356, 3604, 4195, 4505, 8390, 9010, 14263, 16780, 18020, 28526, 44467, 57052, 71315, 88934, 142630, 177868, 222335, 285260, 444670, 755939, 889340, 1511878, 3023756, 3779695, 7559390, 15118780]

約数ペア:

[(1, 15118780), (2, 7559390), (4, 3779695), (5, 3023756), (10, 1511878), (17, 889340), (20, 755939), (34, 444670), (53, 285260), (68, 222335), (85, 177868), (106, 142630), (170, 88934), (212, 71315), (265, 57052), (340, 44467), (530, 28526), (839, 18020), (901, 16780), (1060, 14263), (1678, 9010), (1802, 8390), (3356, 4505), (3604, 4195)]