180880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 80

約数和(自身を含む): 535680

約数和(自身を除く): 354800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 80, 85, 95, 112, 119, 133, 136, 140, 152, 170, 190, 238, 266, 272, 280, 304, 323, 340, 380, 476, 532, 560, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1360, 1520, 1615, 1904, 2128, 2261, 2380, 2584, 2660, 3230, 4522, 4760, 5168, 5320, 6460, 9044, 9520, 10640, 11305, 12920, 18088, 22610, 25840, 36176, 45220, 90440, 180880]

約数ペア:

[(1, 180880), (2, 90440), (4, 45220), (5, 36176), (7, 25840), (8, 22610), (10, 18088), (14, 12920), (16, 11305), (17, 10640), (19, 9520), (20, 9044), (28, 6460), (34, 5320), (35, 5168), (38, 4760), (40, 4522), (56, 3230), (68, 2660), (70, 2584), (76, 2380), (80, 2261), (85, 2128), (95, 1904), (112, 1615), (119, 1520), (133, 1360), (136, 1330), (140, 1292), (152, 1190), (170, 1064), (190, 952), (238, 760), (266, 680), (272, 665), (280, 646), (304, 595), (323, 560), (340, 532), (380, 476)]