208800560

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{42787}}^1$

素因数の和:42861

約数の個数: 40

約数和(自身を含む): 493431216

約数和(自身を除く): 284630656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 42787, 85574, 171148, 213935, 342296, 427870, 684592, 855740, 1711480, 2610007, 3422960, 5220014, 10440028, 13050035, 20880056, 26100070, 41760112, 52200140, 104400280, 208800560]

約数ペア:

[(1, 208800560), (2, 104400280), (4, 52200140), (5, 41760112), (8, 26100070), (10, 20880056), (16, 13050035), (20, 10440028), (40, 5220014), (61, 3422960), (80, 2610007), (122, 1711480), (244, 855740), (305, 684592), (488, 427870), (610, 342296), (976, 213935), (1220, 171148), (2440, 85574), (4880, 42787)]