2438140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 5552064

約数和(自身を除く): 3113924

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 101, 142, 170, 202, 284, 340, 355, 404, 505, 710, 1010, 1207, 1420, 1717, 2020, 2414, 3434, 4828, 6035, 6868, 7171, 8585, 12070, 14342, 17170, 24140, 28684, 34340, 35855, 71710, 121907, 143420, 243814, 487628, 609535, 1219070, 2438140]

約数ペア:

[(1, 2438140), (2, 1219070), (4, 609535), (5, 487628), (10, 243814), (17, 143420), (20, 121907), (34, 71710), (68, 35855), (71, 34340), (85, 28684), (101, 24140), (142, 17170), (170, 14342), (202, 12070), (284, 8585), (340, 7171), (355, 6868), (404, 6035), (505, 4828), (710, 3434), (1010, 2414), (1207, 2020), (1420, 1717)]