31174780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2447}}^1$

素因数の和:2483

約数の個数: 72

約数和(自身を含む): 82047168

約数和(自身を除く): 50872388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2447, 2548, 3185, 4894, 6370, 9788, 12235, 12740, 17129, 24470, 31811, 34258, 48940, 63622, 68516, 85645, 119903, 127244, 159055, 171290, 222677, 239806, 318110, 342580, 445354, 479612, 599515, 636220, 890708, 1113385, 1199030, 1558739, 2226770, 2398060, 3117478, 4453540, 6234956, 7793695, 15587390, 31174780]

約数ペア:

[(1, 31174780), (2, 15587390), (4, 7793695), (5, 6234956), (7, 4453540), (10, 3117478), (13, 2398060), (14, 2226770), (20, 1558739), (26, 1199030), (28, 1113385), (35, 890708), (49, 636220), (52, 599515), (65, 479612), (70, 445354), (91, 342580), (98, 318110), (130, 239806), (140, 222677), (182, 171290), (196, 159055), (245, 127244), (260, 119903), (364, 85645), (455, 68516), (490, 63622), (637, 48940), (910, 34258), (980, 31811), (1274, 24470), (1820, 17129), (2447, 12740), (2548, 12235), (3185, 9788), (4894, 6370)]