31491480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 102643200

約数和(自身を除く): 71151720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 255, 258, 340, 344, 359, 408, 430, 510, 516, 645, 680, 718, 731, 860, 1020, 1032, 1077, 1290, 1436, 1462, 1720, 1795, 2040, 2154, 2193, 2580, 2872, 2924, 3590, 3655, 4308, 4386, 5160, 5385, 5848, 6103, 7180, 7310, 8616, 8772, 10770, 10965, 12206, 14360, 14620, 15437, 17544, 18309, 21540, 21930, 24412, 29240, 30515, 30874, 36618, 43080, 43860, 46311, 48824, 61030, 61748, 73236, 77185, 87720, 91545, 92622, 122060, 123496, 146472, 154370, 183090, 185244, 231555, 244120, 262429, 308740, 366180, 370488, 463110, 524858, 617480, 732360, 787287, 926220, 1049716, 1312145, 1574574, 1852440, 2099432, 2624290, 3149148, 3936435, 5248580, 6298296, 7872870, 10497160, 15745740, 31491480]

約数ペア:

[(1, 31491480), (2, 15745740), (3, 10497160), (4, 7872870), (5, 6298296), (6, 5248580), (8, 3936435), (10, 3149148), (12, 2624290), (15, 2099432), (17, 1852440), (20, 1574574), (24, 1312145), (30, 1049716), (34, 926220), (40, 787287), (43, 732360), (51, 617480), (60, 524858), (68, 463110), (85, 370488), (86, 366180), (102, 308740), (120, 262429), (129, 244120), (136, 231555), (170, 185244), (172, 183090), (204, 154370), (215, 146472), (255, 123496), (258, 122060), (340, 92622), (344, 91545), (359, 87720), (408, 77185), (430, 73236), (510, 61748), (516, 61030), (645, 48824), (680, 46311), (718, 43860), (731, 43080), (860, 36618), (1020, 30874), (1032, 30515), (1077, 29240), (1290, 24412), (1436, 21930), (1462, 21540), (1720, 18309), (1795, 17544), (2040, 15437), (2154, 14620), (2193, 14360), (2580, 12206), (2872, 10965), (2924, 10770), (3590, 8772), (3655, 8616), (4308, 7310), (4386, 7180), (5160, 6103), (5385, 5848)]