9811240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4021}}^1$

素因数の和:4093

約数の個数: 32

約数和(自身を含む): 22442760

約数和(自身を除く): 12631520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 4021, 8042, 16084, 20105, 32168, 40210, 80420, 160840, 245281, 490562, 981124, 1226405, 1962248, 2452810, 4905620, 9811240]

約数ペア:

[(1, 9811240), (2, 4905620), (4, 2452810), (5, 1962248), (8, 1226405), (10, 981124), (20, 490562), (40, 245281), (61, 160840), (122, 80420), (244, 40210), (305, 32168), (488, 20105), (610, 16084), (1220, 8042), (2440, 4021)]