20690330

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2153}}^1$

素因数の和:2222

約数の個数: 24

約数和(自身を含む): 38500596

約数和(自身を除く): 17810266

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 2153, 4306, 4805, 9610, 10765, 21530, 66743, 133486, 333715, 667430, 2069033, 4138066, 10345165, 20690330]

約数ペア:

[(1, 20690330), (2, 10345165), (5, 4138066), (10, 2069033), (31, 667430), (62, 333715), (155, 133486), (310, 66743), (961, 21530), (1922, 10765), (2153, 9610), (4306, 4805)]