20120589040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2307407}}^1$

素因数の和:2307529

約数の個数: 40

約数和(自身を含む): 47209567680

約数和(自身を除く): 27088978640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 2307407, 4614814, 9229628, 11537035, 18459256, 23074070, 36918512, 46148140, 92296280, 184592560, 251507363, 503014726, 1006029452, 1257536815, 2012058904, 2515073630, 4024117808, 5030147260, 10060294520, 20120589040]

約数ペア:

[(1, 20120589040), (2, 10060294520), (4, 5030147260), (5, 4024117808), (8, 2515073630), (10, 2012058904), (16, 1257536815), (20, 1006029452), (40, 503014726), (80, 251507363), (109, 184592560), (218, 92296280), (436, 46148140), (545, 36918512), (872, 23074070), (1090, 18459256), (1744, 11537035), (2180, 9229628), (4360, 4614814), (8720, 2307407)]