578889350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{28729}}^1$

素因数の和:28785

約数の個数: 48

約数和(自身を含む): 1197006720

約数和(自身を除く): 618117370

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 20150, 28729, 57458, 143645, 287290, 373477, 718225, 746954, 890599, 1436450, 1781198, 1867385, 3734770, 4452995, 8905990, 9336925, 11577787, 18673850, 22264975, 23155574, 44529950, 57888935, 115777870, 289444675, 578889350]

約数ペア:

[(1, 578889350), (2, 289444675), (5, 115777870), (10, 57888935), (13, 44529950), (25, 23155574), (26, 22264975), (31, 18673850), (50, 11577787), (62, 9336925), (65, 8905990), (130, 4452995), (155, 3734770), (310, 1867385), (325, 1781198), (403, 1436450), (650, 890599), (775, 746954), (806, 718225), (1550, 373477), (2015, 287290), (4030, 143645), (10075, 57458), (20150, 28729)]