20328056

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 46759680

約数和(自身を除く): 26431624

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 131, 136, 163, 238, 262, 326, 476, 524, 652, 917, 952, 1048, 1141, 1304, 1834, 2227, 2282, 2771, 3668, 4454, 4564, 5542, 7336, 8908, 9128, 11084, 15589, 17816, 19397, 21353, 22168, 31178, 38794, 42706, 62356, 77588, 85412, 124712, 149471, 155176, 170824, 298942, 363001, 597884, 726002, 1195768, 1452004, 2541007, 2904008, 5082014, 10164028, 20328056]

約数ペア:

[(1, 20328056), (2, 10164028), (4, 5082014), (7, 2904008), (8, 2541007), (14, 1452004), (17, 1195768), (28, 726002), (34, 597884), (56, 363001), (68, 298942), (119, 170824), (131, 155176), (136, 149471), (163, 124712), (238, 85412), (262, 77588), (326, 62356), (476, 42706), (524, 38794), (652, 31178), (917, 22168), (952, 21353), (1048, 19397), (1141, 17816), (1304, 15589), (1834, 11084), (2227, 9128), (2282, 8908), (2771, 7336), (3668, 5542), (4454, 4564)]