20767115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 27760320

約数和(自身を除く): 6993205

約数列:

[1, 5, 17, 41, 59, 85, 101, 205, 295, 505, 697, 1003, 1717, 2419, 3485, 4141, 5015, 5959, 8585, 12095, 20705, 29795, 41123, 70397, 101303, 205615, 244319, 351985, 506515, 1221595, 4153423, 20767115]

約数ペア:

[(1, 20767115), (5, 4153423), (17, 1221595), (41, 506515), (59, 351985), (85, 244319), (101, 205615), (205, 101303), (295, 70397), (505, 41123), (697, 29795), (1003, 20705), (1717, 12095), (2419, 8585), (3485, 5959), (4141, 5015)]