19882890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1277}}^1$

素因数の和:1463

約数の個数: 48

約数和(自身を含む): 52035048

約数和(自身を除く): 32152158

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 173, 346, 519, 865, 1038, 1277, 1557, 1730, 2554, 2595, 3114, 3831, 5190, 6385, 7662, 7785, 11493, 12770, 15570, 19155, 22986, 38310, 57465, 114930, 220921, 441842, 662763, 1104605, 1325526, 1988289, 2209210, 3313815, 3976578, 6627630, 9941445, 19882890]

約数ペア:

[(1, 19882890), (2, 9941445), (3, 6627630), (5, 3976578), (6, 3313815), (9, 2209210), (10, 1988289), (15, 1325526), (18, 1104605), (30, 662763), (45, 441842), (90, 220921), (173, 114930), (346, 57465), (519, 38310), (865, 22986), (1038, 19155), (1277, 15570), (1557, 12770), (1730, 11493), (2554, 7785), (2595, 7662), (3114, 6385), (3831, 5190)]