19430925

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 33747840

約数和(自身を除く): 14316915

約数列:

[1, 3, 5, 15, 25, 41, 71, 75, 89, 123, 205, 213, 267, 355, 445, 615, 1025, 1065, 1335, 1775, 2225, 2911, 3075, 3649, 5325, 6319, 6675, 8733, 10947, 14555, 18245, 18957, 31595, 43665, 54735, 72775, 91225, 94785, 157975, 218325, 259079, 273675, 473925, 777237, 1295395, 3886185, 6476975, 19430925]

約数ペア:

[(1, 19430925), (3, 6476975), (5, 3886185), (15, 1295395), (25, 777237), (41, 473925), (71, 273675), (75, 259079), (89, 218325), (123, 157975), (205, 94785), (213, 91225), (267, 72775), (355, 54735), (445, 43665), (615, 31595), (1025, 18957), (1065, 18245), (1335, 14555), (1775, 10947), (2225, 8733), (2911, 6675), (3075, 6319), (3649, 5325)]