18900204

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 48534528

約数和(自身を除く): 29634324

約数列:

[1, 2, 3, 4, 6, 12, 23, 31, 46, 47, 62, 69, 92, 93, 94, 124, 138, 141, 186, 188, 276, 282, 372, 564, 713, 1081, 1426, 1457, 2139, 2162, 2209, 2852, 2914, 3243, 4278, 4324, 4371, 4418, 5828, 6486, 6627, 8556, 8742, 8836, 12972, 13254, 17484, 26508, 33511, 50807, 67022, 68479, 100533, 101614, 134044, 136958, 152421, 201066, 203228, 205437, 273916, 304842, 402132, 410874, 609684, 821748, 1575017, 3150034, 4725051, 6300068, 9450102, 18900204]

約数ペア:

[(1, 18900204), (2, 9450102), (3, 6300068), (4, 4725051), (6, 3150034), (12, 1575017), (23, 821748), (31, 609684), (46, 410874), (47, 402132), (62, 304842), (69, 273916), (92, 205437), (93, 203228), (94, 201066), (124, 152421), (138, 136958), (141, 134044), (186, 101614), (188, 100533), (276, 68479), (282, 67022), (372, 50807), (564, 33511), (713, 26508), (1081, 17484), (1426, 13254), (1457, 12972), (2139, 8836), (2162, 8742), (2209, 8556), (2852, 6627), (2914, 6486), (3243, 5828), (4278, 4418), (4324, 4371)]