900445520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{66601}}^1$

素因数の和:66640

約数の個数: 60

約数和(自身を含む): 2266998876

約数和(自身を除く): 1366553356

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 66601, 133202, 266404, 333005, 532808, 666010, 865813, 1065616, 1332020, 1731626, 2664040, 3463252, 4329065, 5328080, 6926504, 8658130, 11255569, 13853008, 17316260, 22511138, 34632520, 45022276, 56277845, 69265040, 90044552, 112555690, 180089104, 225111380, 450222760, 900445520]

約数ペア:

[(1, 900445520), (2, 450222760), (4, 225111380), (5, 180089104), (8, 112555690), (10, 90044552), (13, 69265040), (16, 56277845), (20, 45022276), (26, 34632520), (40, 22511138), (52, 17316260), (65, 13853008), (80, 11255569), (104, 8658130), (130, 6926504), (169, 5328080), (208, 4329065), (260, 3463252), (338, 2664040), (520, 1731626), (676, 1332020), (845, 1065616), (1040, 865813), (1352, 666010), (1690, 532808), (2704, 333005), (3380, 266404), (6760, 133202), (13520, 66601)]