20764276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 42081984

約数和(自身を除く): 21317708

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 83, 166, 221, 283, 332, 442, 566, 884, 1079, 1132, 1411, 2158, 2822, 3679, 4316, 4811, 5644, 7358, 9622, 14716, 18343, 19244, 23489, 36686, 46978, 62543, 73372, 93956, 125086, 250172, 305357, 399313, 610714, 798626, 1221428, 1597252, 5191069, 10382138, 20764276]

約数ペア:

[(1, 20764276), (2, 10382138), (4, 5191069), (13, 1597252), (17, 1221428), (26, 798626), (34, 610714), (52, 399313), (68, 305357), (83, 250172), (166, 125086), (221, 93956), (283, 73372), (332, 62543), (442, 46978), (566, 36686), (884, 23489), (1079, 19244), (1132, 18343), (1411, 14716), (2158, 9622), (2822, 7358), (3679, 5644), (4316, 4811)]