42890380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164963}}^1$

素因数の和:164985

約数の個数: 24

約数和(自身を含む): 96998832

約数和(自身を除く): 54108452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 164963, 329926, 659852, 824815, 1649630, 2144519, 3299260, 4289038, 8578076, 10722595, 21445190, 42890380]

約数ペア:

[(1, 42890380), (2, 21445190), (4, 10722595), (5, 8578076), (10, 4289038), (13, 3299260), (20, 2144519), (26, 1649630), (52, 824815), (65, 659852), (130, 329926), (260, 164963)]