18511480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{367}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 45440640

約数和(自身を除く): 26929160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 367, 388, 485, 520, 734, 776, 970, 1261, 1468, 1835, 1940, 2522, 2936, 3670, 3880, 4771, 5044, 6305, 7340, 9542, 10088, 12610, 14680, 19084, 23855, 25220, 35599, 38168, 47710, 50440, 71198, 95420, 142396, 177995, 190840, 284792, 355990, 462787, 711980, 925574, 1423960, 1851148, 2313935, 3702296, 4627870, 9255740, 18511480]

約数ペア:

[(1, 18511480), (2, 9255740), (4, 4627870), (5, 3702296), (8, 2313935), (10, 1851148), (13, 1423960), (20, 925574), (26, 711980), (40, 462787), (52, 355990), (65, 284792), (97, 190840), (104, 177995), (130, 142396), (194, 95420), (260, 71198), (367, 50440), (388, 47710), (485, 38168), (520, 35599), (734, 25220), (776, 23855), (970, 19084), (1261, 14680), (1468, 12610), (1835, 10088), (1940, 9542), (2522, 7340), (2936, 6305), (3670, 5044), (3880, 4771)]