18873580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{709}}^1$

素因数の和:751

約数の個数: 48

約数和(自身を含む): 43656480

約数和(自身を除く): 24782900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 709, 1210, 1331, 1418, 2420, 2662, 2836, 3545, 5324, 6655, 7090, 7799, 13310, 14180, 15598, 26620, 31196, 38995, 77990, 85789, 155980, 171578, 343156, 428945, 857890, 943679, 1715780, 1887358, 3774716, 4718395, 9436790, 18873580]

約数ペア:

[(1, 18873580), (2, 9436790), (4, 4718395), (5, 3774716), (10, 1887358), (11, 1715780), (20, 943679), (22, 857890), (44, 428945), (55, 343156), (110, 171578), (121, 155980), (220, 85789), (242, 77990), (484, 38995), (605, 31196), (709, 26620), (1210, 15598), (1331, 14180), (1418, 13310), (2420, 7799), (2662, 7090), (2836, 6655), (3545, 5324)]