19622480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4021}}^1$

素因数の和:4095

約数の個数: 40

約数和(自身を含む): 46381704

約数和(自身を除く): 26759224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4021, 4880, 8042, 16084, 20105, 32168, 40210, 64336, 80420, 160840, 245281, 321680, 490562, 981124, 1226405, 1962248, 2452810, 3924496, 4905620, 9811240, 19622480]

約数ペア:

[(1, 19622480), (2, 9811240), (4, 4905620), (5, 3924496), (8, 2452810), (10, 1962248), (16, 1226405), (20, 981124), (40, 490562), (61, 321680), (80, 245281), (122, 160840), (244, 80420), (305, 64336), (488, 40210), (610, 32168), (976, 20105), (1220, 16084), (2440, 8042), (4021, 4880)]