205059440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{150779}}^1$

素因数の和:150809

約数の個数: 40

約数和(自身を含む): 504811440

約数和(自身を除く): 299752000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 150779, 301558, 603116, 753895, 1206232, 1507790, 2412464, 2563243, 3015580, 5126486, 6031160, 10252972, 12062320, 12816215, 20505944, 25632430, 41011888, 51264860, 102529720, 205059440]

約数ペア:

[(1, 205059440), (2, 102529720), (4, 51264860), (5, 41011888), (8, 25632430), (10, 20505944), (16, 12816215), (17, 12062320), (20, 10252972), (34, 6031160), (40, 5126486), (68, 3015580), (80, 2563243), (85, 2412464), (136, 1507790), (170, 1206232), (272, 753895), (340, 603116), (680, 301558), (1360, 150779)]