31245280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:500

約数の個数: 96

約数和(自身を含む): 82682208

約数和(自身を除く): 51436928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 80, 82, 88, 110, 160, 164, 176, 205, 220, 328, 352, 410, 433, 440, 451, 656, 820, 866, 880, 902, 1312, 1640, 1732, 1760, 1804, 2165, 2255, 3280, 3464, 3608, 4330, 4510, 4763, 6560, 6928, 7216, 8660, 9020, 9526, 13856, 14432, 17320, 17753, 18040, 19052, 23815, 34640, 35506, 36080, 38104, 47630, 69280, 71012, 72160, 76208, 88765, 95260, 142024, 152416, 177530, 190520, 195283, 284048, 355060, 381040, 390566, 568096, 710120, 762080, 781132, 976415, 1420240, 1562264, 1952830, 2840480, 3124528, 3905660, 6249056, 7811320, 15622640, 31245280]

約数ペア:

[(1, 31245280), (2, 15622640), (4, 7811320), (5, 6249056), (8, 3905660), (10, 3124528), (11, 2840480), (16, 1952830), (20, 1562264), (22, 1420240), (32, 976415), (40, 781132), (41, 762080), (44, 710120), (55, 568096), (80, 390566), (82, 381040), (88, 355060), (110, 284048), (160, 195283), (164, 190520), (176, 177530), (205, 152416), (220, 142024), (328, 95260), (352, 88765), (410, 76208), (433, 72160), (440, 71012), (451, 69280), (656, 47630), (820, 38104), (866, 36080), (880, 35506), (902, 34640), (1312, 23815), (1640, 19052), (1732, 18040), (1760, 17753), (1804, 17320), (2165, 14432), (2255, 13856), (3280, 9526), (3464, 9020), (3608, 8660), (4330, 7216), (4510, 6928), (4763, 6560)]