31389484

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 68676608

約数和(自身を除く): 37287124

約数列:

[1, 2, 4, 7, 14, 28, 29, 31, 43, 58, 62, 86, 116, 124, 172, 203, 217, 301, 406, 434, 602, 812, 841, 868, 899, 1204, 1247, 1333, 1682, 1798, 2494, 2666, 3364, 3596, 4988, 5332, 5887, 6293, 8729, 9331, 11774, 12586, 17458, 18662, 23548, 25172, 26071, 34916, 36163, 37324, 38657, 52142, 72326, 77314, 104284, 144652, 154628, 182497, 253141, 270599, 364994, 506282, 541198, 729988, 1012564, 1082396, 1121053, 2242106, 4484212, 7847371, 15694742, 31389484]

約数ペア:

[(1, 31389484), (2, 15694742), (4, 7847371), (7, 4484212), (14, 2242106), (28, 1121053), (29, 1082396), (31, 1012564), (43, 729988), (58, 541198), (62, 506282), (86, 364994), (116, 270599), (124, 253141), (172, 182497), (203, 154628), (217, 144652), (301, 104284), (406, 77314), (434, 72326), (602, 52142), (812, 38657), (841, 37324), (868, 36163), (899, 34916), (1204, 26071), (1247, 25172), (1333, 23548), (1682, 18662), (1798, 17458), (2494, 12586), (2666, 11774), (3364, 9331), (3596, 8729), (4988, 6293), (5332, 5887)]