87220880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1087}}^1$

素因数の和:1176

約数の個数: 80

約数和(自身を含む): 218557440

約数和(自身を除く): 131336560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 59, 68, 80, 85, 118, 136, 170, 236, 272, 295, 340, 472, 590, 680, 944, 1003, 1087, 1180, 1360, 2006, 2174, 2360, 4012, 4348, 4720, 5015, 5435, 8024, 8696, 10030, 10870, 16048, 17392, 18479, 20060, 21740, 36958, 40120, 43480, 64133, 73916, 80240, 86960, 92395, 128266, 147832, 184790, 256532, 295664, 320665, 369580, 513064, 641330, 739160, 1026128, 1090261, 1282660, 1478320, 2180522, 2565320, 4361044, 5130640, 5451305, 8722088, 10902610, 17444176, 21805220, 43610440, 87220880]

約数ペア:

[(1, 87220880), (2, 43610440), (4, 21805220), (5, 17444176), (8, 10902610), (10, 8722088), (16, 5451305), (17, 5130640), (20, 4361044), (34, 2565320), (40, 2180522), (59, 1478320), (68, 1282660), (80, 1090261), (85, 1026128), (118, 739160), (136, 641330), (170, 513064), (236, 369580), (272, 320665), (295, 295664), (340, 256532), (472, 184790), (590, 147832), (680, 128266), (944, 92395), (1003, 86960), (1087, 80240), (1180, 73916), (1360, 64133), (2006, 43480), (2174, 40120), (2360, 36958), (4012, 21740), (4348, 20060), (4720, 18479), (5015, 17392), (5435, 16048), (8024, 10870), (8696, 10030)]