1811840

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 4590000

約数和(自身を除く): 2778160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 149, 152, 160, 190, 298, 304, 320, 380, 596, 608, 640, 745, 760, 1192, 1216, 1490, 1520, 2384, 2432, 2831, 2980, 3040, 4768, 5662, 5960, 6080, 9536, 11324, 11920, 12160, 14155, 19072, 22648, 23840, 28310, 45296, 47680, 56620, 90592, 95360, 113240, 181184, 226480, 362368, 452960, 905920, 1811840]

約数ペア:

[(1, 1811840), (2, 905920), (4, 452960), (5, 362368), (8, 226480), (10, 181184), (16, 113240), (19, 95360), (20, 90592), (32, 56620), (38, 47680), (40, 45296), (64, 28310), (76, 23840), (80, 22648), (95, 19072), (128, 14155), (149, 12160), (152, 11920), (160, 11324), (190, 9536), (298, 6080), (304, 5960), (320, 5662), (380, 4768), (596, 3040), (608, 2980), (640, 2831), (745, 2432), (760, 2384), (1192, 1520), (1216, 1490)]