18215540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5657}}^1$

素因数の和:5696

約数の個数: 48

約数和(自身を含む): 45626112

約数和(自身を除く): 27410572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5657, 11314, 22628, 28285, 39599, 56570, 79198, 113140, 130111, 158396, 197995, 260222, 395990, 520444, 650555, 791980, 910777, 1301110, 1821554, 2602220, 3643108, 4553885, 9107770, 18215540]

約数ペア:

[(1, 18215540), (2, 9107770), (4, 4553885), (5, 3643108), (7, 2602220), (10, 1821554), (14, 1301110), (20, 910777), (23, 791980), (28, 650555), (35, 520444), (46, 395990), (70, 260222), (92, 197995), (115, 158396), (140, 130111), (161, 113140), (230, 79198), (322, 56570), (460, 39599), (644, 28285), (805, 22628), (1610, 11314), (3220, 5657)]