18997770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2503}}^1$

素因数の和:2547

約数の個数: 64

約数和(自身を含む): 51922944

約数和(自身を除く): 32925174

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2503, 2530, 3795, 5006, 7509, 7590, 12515, 15018, 25030, 27533, 37545, 55066, 57569, 75090, 82599, 115138, 137665, 165198, 172707, 275330, 287845, 345414, 412995, 575690, 633259, 825990, 863535, 1266518, 1727070, 1899777, 3166295, 3799554, 6332590, 9498885, 18997770]

約数ペア:

[(1, 18997770), (2, 9498885), (3, 6332590), (5, 3799554), (6, 3166295), (10, 1899777), (11, 1727070), (15, 1266518), (22, 863535), (23, 825990), (30, 633259), (33, 575690), (46, 412995), (55, 345414), (66, 287845), (69, 275330), (110, 172707), (115, 165198), (138, 137665), (165, 115138), (230, 82599), (253, 75090), (330, 57569), (345, 55066), (506, 37545), (690, 27533), (759, 25030), (1265, 15018), (1518, 12515), (2503, 7590), (2530, 7509), (3795, 5006)]