18628168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 39836160

約数和(自身を除く): 21207992

約数列:

[1, 2, 4, 8, 13, 26, 37, 47, 52, 74, 94, 103, 104, 148, 188, 206, 296, 376, 412, 481, 611, 824, 962, 1222, 1339, 1739, 1924, 2444, 2678, 3478, 3811, 3848, 4841, 4888, 5356, 6956, 7622, 9682, 10712, 13912, 15244, 19364, 22607, 30488, 38728, 45214, 49543, 62933, 90428, 99086, 125866, 179117, 180856, 198172, 251732, 358234, 396344, 503464, 716468, 1432936, 2328521, 4657042, 9314084, 18628168]

約数ペア:

[(1, 18628168), (2, 9314084), (4, 4657042), (8, 2328521), (13, 1432936), (26, 716468), (37, 503464), (47, 396344), (52, 358234), (74, 251732), (94, 198172), (103, 180856), (104, 179117), (148, 125866), (188, 99086), (206, 90428), (296, 62933), (376, 49543), (412, 45214), (481, 38728), (611, 30488), (824, 22607), (962, 19364), (1222, 15244), (1339, 13912), (1739, 10712), (1924, 9682), (2444, 7622), (2678, 6956), (3478, 5356), (3811, 4888), (3848, 4841)]