20009508

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 51206400

約数和(自身を除く): 31196892

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 38, 57, 62, 76, 93, 114, 124, 149, 186, 228, 298, 361, 372, 447, 589, 596, 722, 894, 1083, 1178, 1444, 1767, 1788, 2166, 2356, 2831, 3534, 4332, 4619, 5662, 7068, 8493, 9238, 11191, 11324, 13857, 16986, 18476, 22382, 27714, 33573, 33972, 44764, 53789, 55428, 67146, 87761, 107578, 134292, 161367, 175522, 215156, 263283, 322734, 351044, 526566, 645468, 1053132, 1667459, 3334918, 5002377, 6669836, 10004754, 20009508]

約数ペア:

[(1, 20009508), (2, 10004754), (3, 6669836), (4, 5002377), (6, 3334918), (12, 1667459), (19, 1053132), (31, 645468), (38, 526566), (57, 351044), (62, 322734), (76, 263283), (93, 215156), (114, 175522), (124, 161367), (149, 134292), (186, 107578), (228, 87761), (298, 67146), (361, 55428), (372, 53789), (447, 44764), (589, 33972), (596, 33573), (722, 27714), (894, 22382), (1083, 18476), (1178, 16986), (1444, 13857), (1767, 11324), (1788, 11191), (2166, 9238), (2356, 8493), (2831, 7068), (3534, 5662), (4332, 4619)]