20286640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23053}}^1$

素因数の和:23077

約数の個数: 40

約数和(自身を含む): 51456528

約数和(自身を除く): 31169888

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23053, 46106, 92212, 115265, 184424, 230530, 253583, 368848, 461060, 507166, 922120, 1014332, 1267915, 1844240, 2028664, 2535830, 4057328, 5071660, 10143320, 20286640]

約数ペア:

[(1, 20286640), (2, 10143320), (4, 5071660), (5, 4057328), (8, 2535830), (10, 2028664), (11, 1844240), (16, 1267915), (20, 1014332), (22, 922120), (40, 507166), (44, 461060), (55, 368848), (80, 253583), (88, 230530), (110, 184424), (176, 115265), (220, 92212), (440, 46106), (880, 23053)]