51438140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5347}}^1$

素因数の和:5406

約数の個数: 48

約数和(自身を含む): 119495712

約数和(自身を除く): 68057572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 5347, 9620, 10694, 21388, 26735, 53470, 69511, 106940, 139022, 197839, 278044, 347555, 395678, 695110, 791356, 989195, 1390220, 1978390, 2571907, 3956780, 5143814, 10287628, 12859535, 25719070, 51438140]

約数ペア:

[(1, 51438140), (2, 25719070), (4, 12859535), (5, 10287628), (10, 5143814), (13, 3956780), (20, 2571907), (26, 1978390), (37, 1390220), (52, 989195), (65, 791356), (74, 695110), (130, 395678), (148, 347555), (185, 278044), (260, 197839), (370, 139022), (481, 106940), (740, 69511), (962, 53470), (1924, 26735), (2405, 21388), (4810, 10694), (5347, 9620)]