201640720

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{3467}}^1$

素因数の和:4207

約数の個数: 40

約数和(自身を含む): 469594944

約数和(自身を除く): 267954224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 2908, 3467, 3635, 5816, 6934, 7270, 11632, 13868, 14540, 17335, 27736, 29080, 34670, 55472, 58160, 69340, 138680, 277360, 2520509, 5041018, 10082036, 12602545, 20164072, 25205090, 40328144, 50410180, 100820360, 201640720]

約数ペア:

[(1, 201640720), (2, 100820360), (4, 50410180), (5, 40328144), (8, 25205090), (10, 20164072), (16, 12602545), (20, 10082036), (40, 5041018), (80, 2520509), (727, 277360), (1454, 138680), (2908, 69340), (3467, 58160), (3635, 55472), (5816, 34670), (6934, 29080), (7270, 27736), (11632, 17335), (13868, 14540)]