218797515

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 389188800

約数和(自身を除く): 170391285

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 199, 265, 461, 477, 597, 795, 995, 1383, 1791, 2305, 2385, 2985, 4149, 6915, 8955, 10547, 20745, 24433, 31641, 52735, 73299, 91739, 94923, 122165, 158205, 219897, 275217, 366495, 458695, 474615, 825651, 1099485, 1376085, 4128255, 4862167, 14586501, 24310835, 43759503, 72932505, 218797515]

約数ペア:

[(1, 218797515), (3, 72932505), (5, 43759503), (9, 24310835), (15, 14586501), (45, 4862167), (53, 4128255), (159, 1376085), (199, 1099485), (265, 825651), (461, 474615), (477, 458695), (597, 366495), (795, 275217), (995, 219897), (1383, 158205), (1791, 122165), (2305, 94923), (2385, 91739), (2985, 73299), (4149, 52735), (6915, 31641), (8955, 24433), (10547, 20745)]