20747136

素因数分解:

$2^7\times 3^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 55777680

約数和(自身を除く): 35030544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 97, 128, 192, 194, 291, 384, 388, 557, 582, 776, 1114, 1164, 1552, 1671, 2228, 2328, 3104, 3342, 4456, 4656, 6208, 6684, 8912, 9312, 12416, 13368, 17824, 18624, 26736, 35648, 37248, 53472, 54029, 71296, 106944, 108058, 162087, 213888, 216116, 324174, 432232, 648348, 864464, 1296696, 1728928, 2593392, 3457856, 5186784, 6915712, 10373568, 20747136]

約数ペア:

[(1, 20747136), (2, 10373568), (3, 6915712), (4, 5186784), (6, 3457856), (8, 2593392), (12, 1728928), (16, 1296696), (24, 864464), (32, 648348), (48, 432232), (64, 324174), (96, 216116), (97, 213888), (128, 162087), (192, 108058), (194, 106944), (291, 71296), (384, 54029), (388, 53472), (557, 37248), (582, 35648), (776, 26736), (1114, 18624), (1164, 17824), (1552, 13368), (1671, 12416), (2228, 9312), (2328, 8912), (3104, 6684), (3342, 6208), (4456, 4656)]