20046140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24950980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 743, 1349, 1420, 1486, 2698, 2972, 3715, 5396, 6745, 7430, 13490, 14117, 14860, 26980, 28234, 52753, 56468, 70585, 105506, 141170, 211012, 263765, 282340, 527530, 1002307, 1055060, 2004614, 4009228, 5011535, 10023070, 20046140]

約数ペア:

[(1, 20046140), (2, 10023070), (4, 5011535), (5, 4009228), (10, 2004614), (19, 1055060), (20, 1002307), (38, 527530), (71, 282340), (76, 263765), (95, 211012), (142, 141170), (190, 105506), (284, 70585), (355, 56468), (380, 52753), (710, 28234), (743, 26980), (1349, 14860), (1420, 14117), (1486, 13490), (2698, 7430), (2972, 6745), (3715, 5396)]