31690204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 70875168

約数和(自身を除く): 39184964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 74, 91, 148, 169, 181, 182, 259, 338, 362, 364, 481, 518, 676, 724, 962, 1036, 1183, 1267, 1924, 2353, 2366, 2534, 3367, 4706, 4732, 5068, 6253, 6697, 6734, 9412, 12506, 13394, 13468, 16471, 25012, 26788, 30589, 32942, 43771, 46879, 61178, 65884, 87061, 87542, 93758, 122356, 174122, 175084, 187516, 214123, 348244, 428246, 609427, 856492, 1131793, 1218854, 2263586, 2437708, 4527172, 7922551, 15845102, 31690204]

約数ペア:

[(1, 31690204), (2, 15845102), (4, 7922551), (7, 4527172), (13, 2437708), (14, 2263586), (26, 1218854), (28, 1131793), (37, 856492), (52, 609427), (74, 428246), (91, 348244), (148, 214123), (169, 187516), (181, 175084), (182, 174122), (259, 122356), (338, 93758), (362, 87542), (364, 87061), (481, 65884), (518, 61178), (676, 46879), (724, 43771), (962, 32942), (1036, 30589), (1183, 26788), (1267, 25012), (1924, 16471), (2353, 13468), (2366, 13394), (2534, 12506), (3367, 9412), (4706, 6734), (4732, 6697), (5068, 6253)]