19293080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7907}}^1$

素因数の和:7979

約数の個数: 32

約数和(自身を含む): 44126640

約数和(自身を除く): 24833560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7907, 15814, 31628, 39535, 63256, 79070, 158140, 316280, 482327, 964654, 1929308, 2411635, 3858616, 4823270, 9646540, 19293080]

約数ペア:

[(1, 19293080), (2, 9646540), (4, 4823270), (5, 3858616), (8, 2411635), (10, 1929308), (20, 964654), (40, 482327), (61, 316280), (122, 158140), (244, 79070), (305, 63256), (488, 39535), (610, 31628), (1220, 15814), (2440, 7907)]