20454808

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 45061920

約数和(自身を除く): 24607112

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 113, 121, 136, 187, 226, 242, 374, 452, 484, 748, 904, 968, 1243, 1331, 1496, 1921, 2057, 2486, 2662, 3842, 4114, 4972, 5324, 7684, 8228, 9944, 10648, 13673, 15368, 16456, 21131, 22627, 27346, 42262, 45254, 54692, 84524, 90508, 109384, 150403, 169048, 181016, 232441, 300806, 464882, 601612, 929764, 1203224, 1859528, 2556851, 5113702, 10227404, 20454808]

約数ペア:

[(1, 20454808), (2, 10227404), (4, 5113702), (8, 2556851), (11, 1859528), (17, 1203224), (22, 929764), (34, 601612), (44, 464882), (68, 300806), (88, 232441), (113, 181016), (121, 169048), (136, 150403), (187, 109384), (226, 90508), (242, 84524), (374, 54692), (452, 45254), (484, 42262), (748, 27346), (904, 22627), (968, 21131), (1243, 16456), (1331, 15368), (1496, 13673), (1921, 10648), (2057, 9944), (2486, 8228), (2662, 7684), (3842, 5324), (4114, 4972)]