20077965

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1021}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 38263680

約数和(自身を除く): 18185715

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1021, 1035, 1311, 2185, 3063, 3933, 5105, 6555, 9189, 15315, 19399, 19665, 23483, 45945, 58197, 70449, 96995, 117415, 174591, 211347, 290985, 352245, 446177, 872955, 1056735, 1338531, 2230885, 4015593, 6692655, 20077965]

約数ペア:

[(1, 20077965), (3, 6692655), (5, 4015593), (9, 2230885), (15, 1338531), (19, 1056735), (23, 872955), (45, 446177), (57, 352245), (69, 290985), (95, 211347), (115, 174591), (171, 117415), (207, 96995), (285, 70449), (345, 58197), (437, 45945), (855, 23483), (1021, 19665), (1035, 19399), (1311, 15315), (2185, 9189), (3063, 6555), (3933, 5105)]