8217880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 21254400

約数和(自身を除く): 13036520

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 983, 1045, 1672, 1966, 2090, 3932, 4180, 4915, 7864, 8360, 9830, 10813, 18677, 19660, 21626, 37354, 39320, 43252, 54065, 74708, 86504, 93385, 108130, 149416, 186770, 205447, 216260, 373540, 410894, 432520, 747080, 821788, 1027235, 1643576, 2054470, 4108940, 8217880]

約数ペア:

[(1, 8217880), (2, 4108940), (4, 2054470), (5, 1643576), (8, 1027235), (10, 821788), (11, 747080), (19, 432520), (20, 410894), (22, 373540), (38, 216260), (40, 205447), (44, 186770), (55, 149416), (76, 108130), (88, 93385), (95, 86504), (110, 74708), (152, 54065), (190, 43252), (209, 39320), (220, 37354), (380, 21626), (418, 19660), (440, 18677), (760, 10813), (836, 9830), (983, 8360), (1045, 7864), (1672, 4915), (1966, 4180), (2090, 3932)]