127720880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2887}}^1$

素因数の和:2986

約数の個数: 80

約数和(自身を含む): 343787520

約数和(自身を除く): 216066640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 2212, 2765, 2887, 3160, 4424, 5530, 5774, 6320, 8848, 11060, 11548, 14435, 20209, 22120, 23096, 28870, 40418, 44240, 46192, 57740, 80836, 101045, 115480, 161672, 202090, 228073, 230960, 323344, 404180, 456146, 808360, 912292, 1140365, 1596511, 1616720, 1824584, 2280730, 3193022, 3649168, 4561460, 6386044, 7982555, 9122920, 12772088, 15965110, 18245840, 25544176, 31930220, 63860440, 127720880]

約数ペア:

[(1, 127720880), (2, 63860440), (4, 31930220), (5, 25544176), (7, 18245840), (8, 15965110), (10, 12772088), (14, 9122920), (16, 7982555), (20, 6386044), (28, 4561460), (35, 3649168), (40, 3193022), (56, 2280730), (70, 1824584), (79, 1616720), (80, 1596511), (112, 1140365), (140, 912292), (158, 808360), (280, 456146), (316, 404180), (395, 323344), (553, 230960), (560, 228073), (632, 202090), (790, 161672), (1106, 115480), (1264, 101045), (1580, 80836), (2212, 57740), (2765, 46192), (2887, 44240), (3160, 40418), (4424, 28870), (5530, 23096), (5774, 22120), (6320, 20209), (8848, 14435), (11060, 11548)]