84679420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20857}}^1$

素因数の和:20902

約数の個数: 48

約数和(自身を含む): 210248640

約数和(自身を除く): 125569220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 20857, 41714, 83428, 104285, 145999, 208570, 291998, 417140, 583996, 604853, 729995, 1209706, 1459990, 2419412, 2919980, 3024265, 4233971, 6048530, 8467942, 12097060, 16935884, 21169855, 42339710, 84679420]

約数ペア:

[(1, 84679420), (2, 42339710), (4, 21169855), (5, 16935884), (7, 12097060), (10, 8467942), (14, 6048530), (20, 4233971), (28, 3024265), (29, 2919980), (35, 2419412), (58, 1459990), (70, 1209706), (116, 729995), (140, 604853), (145, 583996), (203, 417140), (290, 291998), (406, 208570), (580, 145999), (812, 104285), (1015, 83428), (2030, 41714), (4060, 20857)]