20346872

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 49459200

約数和(自身を除く): 29112328

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1471, 1729, 1976, 2942, 3458, 5884, 6916, 10297, 11768, 13832, 19123, 20594, 27949, 38246, 41188, 55898, 76492, 82376, 111796, 133861, 152984, 195643, 223592, 267722, 363337, 391286, 535444, 726674, 782572, 1070888, 1453348, 1565144, 2543359, 2906696, 5086718, 10173436, 20346872]

約数ペア:

[(1, 20346872), (2, 10173436), (4, 5086718), (7, 2906696), (8, 2543359), (13, 1565144), (14, 1453348), (19, 1070888), (26, 782572), (28, 726674), (38, 535444), (52, 391286), (56, 363337), (76, 267722), (91, 223592), (104, 195643), (133, 152984), (152, 133861), (182, 111796), (247, 82376), (266, 76492), (364, 55898), (494, 41188), (532, 38246), (728, 27949), (988, 20594), (1064, 19123), (1471, 13832), (1729, 11768), (1976, 10297), (2942, 6916), (3458, 5884)]