19424890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 16500230

約数列:

[1, 2, 5, 10, 71, 109, 142, 218, 251, 355, 502, 545, 710, 1090, 1255, 2510, 7739, 15478, 17821, 27359, 35642, 38695, 54718, 77390, 89105, 136795, 178210, 273590, 1942489, 3884978, 9712445, 19424890]

約数ペア:

[(1, 19424890), (2, 9712445), (5, 3884978), (10, 1942489), (71, 273590), (109, 178210), (142, 136795), (218, 89105), (251, 77390), (355, 54718), (502, 38695), (545, 35642), (710, 27359), (1090, 17821), (1255, 15478), (2510, 7739)]