1996520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 4924800

約数和(自身を除く): 2928280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 71, 74, 76, 95, 142, 148, 152, 185, 190, 284, 296, 355, 370, 380, 568, 703, 710, 740, 760, 1349, 1406, 1420, 1480, 2627, 2698, 2812, 2840, 3515, 5254, 5396, 5624, 6745, 7030, 10508, 10792, 13135, 13490, 14060, 21016, 26270, 26980, 28120, 49913, 52540, 53960, 99826, 105080, 199652, 249565, 399304, 499130, 998260, 1996520]

約数ペア:

[(1, 1996520), (2, 998260), (4, 499130), (5, 399304), (8, 249565), (10, 199652), (19, 105080), (20, 99826), (37, 53960), (38, 52540), (40, 49913), (71, 28120), (74, 26980), (76, 26270), (95, 21016), (142, 14060), (148, 13490), (152, 13135), (185, 10792), (190, 10508), (284, 7030), (296, 6745), (355, 5624), (370, 5396), (380, 5254), (568, 3515), (703, 2840), (710, 2812), (740, 2698), (760, 2627), (1349, 1480), (1406, 1420)]