19949740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 25208660

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1399, 1426, 2798, 2852, 3565, 5596, 6995, 7130, 13990, 14260, 27980, 32177, 43369, 64354, 86738, 128708, 160885, 173476, 216845, 321770, 433690, 643540, 867380, 997487, 1994974, 3989948, 4987435, 9974870, 19949740]

約数ペア:

[(1, 19949740), (2, 9974870), (4, 4987435), (5, 3989948), (10, 1994974), (20, 997487), (23, 867380), (31, 643540), (46, 433690), (62, 321770), (92, 216845), (115, 173476), (124, 160885), (155, 128708), (230, 86738), (310, 64354), (460, 43369), (620, 32177), (713, 27980), (1399, 14260), (1426, 13990), (2798, 7130), (2852, 6995), (3565, 5596)]