18503980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{349}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 42688800

約数和(自身を除く): 24184820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 349, 482, 698, 964, 1205, 1396, 1745, 2410, 2651, 3490, 3839, 4820, 5302, 6980, 7678, 10604, 13255, 15356, 19195, 26510, 38390, 53020, 76780, 84109, 168218, 336436, 420545, 841090, 925199, 1682180, 1850398, 3700796, 4625995, 9251990, 18503980]

約数ペア:

[(1, 18503980), (2, 9251990), (4, 4625995), (5, 3700796), (10, 1850398), (11, 1682180), (20, 925199), (22, 841090), (44, 420545), (55, 336436), (110, 168218), (220, 84109), (241, 76780), (349, 53020), (482, 38390), (698, 26510), (964, 19195), (1205, 15356), (1396, 13255), (1745, 10604), (2410, 7678), (2651, 6980), (3490, 5302), (3839, 4820)]