278102740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{1297}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 596623104

約数和(自身を除く): 318520364

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 284, 302, 355, 604, 710, 755, 1297, 1420, 1510, 2594, 3020, 5188, 6485, 10721, 12970, 21442, 25940, 42884, 53605, 92087, 107210, 184174, 195847, 214420, 368348, 391694, 460435, 783388, 920870, 979235, 1841740, 1958470, 3916940, 13905137, 27810274, 55620548, 69525685, 139051370, 278102740]

約数ペア:

[(1, 278102740), (2, 139051370), (4, 69525685), (5, 55620548), (10, 27810274), (20, 13905137), (71, 3916940), (142, 1958470), (151, 1841740), (284, 979235), (302, 920870), (355, 783388), (604, 460435), (710, 391694), (755, 368348), (1297, 214420), (1420, 195847), (1510, 184174), (2594, 107210), (3020, 92087), (5188, 53605), (6485, 42884), (10721, 25940), (12970, 21442)]