18970760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15299}}^1$

素因数の和:15341

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 25093240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15299, 30598, 61196, 76495, 122392, 152990, 305980, 474269, 611960, 948538, 1897076, 2371345, 3794152, 4742690, 9485380, 18970760]

約数ペア:

[(1, 18970760), (2, 9485380), (4, 4742690), (5, 3794152), (8, 2371345), (10, 1897076), (20, 948538), (31, 611960), (40, 474269), (62, 305980), (124, 152990), (155, 122392), (248, 76495), (310, 61196), (620, 30598), (1240, 15299)]