16000280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 38988000

約数和(自身を除く): 22987720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 569, 703, 740, 760, 1138, 1406, 1480, 2276, 2812, 2845, 3515, 4552, 5624, 5690, 7030, 10811, 11380, 14060, 21053, 21622, 22760, 28120, 42106, 43244, 54055, 84212, 86488, 105265, 108110, 168424, 210530, 216220, 400007, 421060, 432440, 800014, 842120, 1600028, 2000035, 3200056, 4000070, 8000140, 16000280]

約数ペア:

[(1, 16000280), (2, 8000140), (4, 4000070), (5, 3200056), (8, 2000035), (10, 1600028), (19, 842120), (20, 800014), (37, 432440), (38, 421060), (40, 400007), (74, 216220), (76, 210530), (95, 168424), (148, 108110), (152, 105265), (185, 86488), (190, 84212), (296, 54055), (370, 43244), (380, 42106), (569, 28120), (703, 22760), (740, 21622), (760, 21053), (1138, 14060), (1406, 11380), (1480, 10811), (2276, 7030), (2812, 5690), (2845, 5624), (3515, 4552)]