78145880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32027}}^1$

素因数の和:32099

約数の個数: 32

約数和(自身を含む): 178716240

約数和(自身を除く): 100570360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32027, 64054, 128108, 160135, 256216, 320270, 640540, 1281080, 1953647, 3907294, 7814588, 9768235, 15629176, 19536470, 39072940, 78145880]

約数ペア:

[(1, 78145880), (2, 39072940), (4, 19536470), (5, 15629176), (8, 9768235), (10, 7814588), (20, 3907294), (40, 1953647), (61, 1281080), (122, 640540), (244, 320270), (305, 256216), (488, 160135), (610, 128108), (1220, 64054), (2440, 32027)]