251010320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1889}}^1$

素因数の和:2064

約数の個数: 80

約数和(自身を含む): 641208960

約数和(自身を除く): 390198640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 151, 176, 220, 302, 440, 604, 755, 880, 1208, 1510, 1661, 1889, 2416, 3020, 3322, 3778, 6040, 6644, 7556, 8305, 9445, 12080, 13288, 15112, 16610, 18890, 20779, 26576, 30224, 33220, 37780, 41558, 66440, 75560, 83116, 103895, 132880, 151120, 166232, 207790, 285239, 332464, 415580, 570478, 831160, 1140956, 1426195, 1662320, 2281912, 2852390, 3137629, 4563824, 5704780, 6275258, 11409560, 12550516, 15688145, 22819120, 25101032, 31376290, 50202064, 62752580, 125505160, 251010320]

約数ペア:

[(1, 251010320), (2, 125505160), (4, 62752580), (5, 50202064), (8, 31376290), (10, 25101032), (11, 22819120), (16, 15688145), (20, 12550516), (22, 11409560), (40, 6275258), (44, 5704780), (55, 4563824), (80, 3137629), (88, 2852390), (110, 2281912), (151, 1662320), (176, 1426195), (220, 1140956), (302, 831160), (440, 570478), (604, 415580), (755, 332464), (880, 285239), (1208, 207790), (1510, 166232), (1661, 151120), (1889, 132880), (2416, 103895), (3020, 83116), (3322, 75560), (3778, 66440), (6040, 41558), (6644, 37780), (7556, 33220), (8305, 30224), (9445, 26576), (12080, 20779), (13288, 18890), (15112, 16610)]