2115800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 5022000

約数和(自身を除く): 2906200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 149, 200, 284, 298, 355, 568, 596, 710, 745, 1192, 1420, 1490, 1775, 2840, 2980, 3550, 3725, 5960, 7100, 7450, 10579, 14200, 14900, 21158, 29800, 42316, 52895, 84632, 105790, 211580, 264475, 423160, 528950, 1057900, 2115800]

約数ペア:

[(1, 2115800), (2, 1057900), (4, 528950), (5, 423160), (8, 264475), (10, 211580), (20, 105790), (25, 84632), (40, 52895), (50, 42316), (71, 29800), (100, 21158), (142, 14900), (149, 14200), (200, 10579), (284, 7450), (298, 7100), (355, 5960), (568, 3725), (596, 3550), (710, 2980), (745, 2840), (1192, 1775), (1420, 1490)]