18229225

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:694

約数の個数: 36

約数和(自身を含む): 27480384

約数和(自身を除く): 9251159

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 647, 805, 1127, 1225, 3235, 4025, 4529, 5635, 14881, 16175, 22645, 28175, 31703, 74405, 104167, 113225, 158515, 372025, 520835, 729169, 792575, 2604175, 3645845, 18229225]

約数ペア:

[(1, 18229225), (5, 3645845), (7, 2604175), (23, 792575), (25, 729169), (35, 520835), (49, 372025), (115, 158515), (161, 113225), (175, 104167), (245, 74405), (575, 31703), (647, 28175), (805, 22645), (1127, 16175), (1225, 14881), (3235, 5635), (4025, 4529)]