721131908

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 1568931840

約数和(自身を除く): 847799932

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 79, 119, 127, 151, 158, 238, 254, 302, 316, 476, 508, 553, 604, 889, 1057, 1106, 1343, 1778, 2114, 2159, 2212, 2567, 2686, 3556, 4228, 4318, 5134, 5372, 8636, 9401, 10033, 10268, 11929, 15113, 17969, 18802, 19177, 20066, 23858, 30226, 35938, 37604, 38354, 40132, 47716, 60452, 70231, 71876, 76708, 83503, 134239, 140462, 167006, 170561, 202793, 268478, 280924, 326009, 334012, 341122, 405586, 536956, 652018, 682244, 811172, 1193927, 1304036, 1419551, 1514983, 2282063, 2387854, 2839102, 3029966, 4564126, 4775708, 5678204, 6059932, 9128252, 10604881, 21209762, 25754711, 42419524, 51509422, 103018844, 180282977, 360565954, 721131908]

約数ペア:

[(1, 721131908), (2, 360565954), (4, 180282977), (7, 103018844), (14, 51509422), (17, 42419524), (28, 25754711), (34, 21209762), (68, 10604881), (79, 9128252), (119, 6059932), (127, 5678204), (151, 4775708), (158, 4564126), (238, 3029966), (254, 2839102), (302, 2387854), (316, 2282063), (476, 1514983), (508, 1419551), (553, 1304036), (604, 1193927), (889, 811172), (1057, 682244), (1106, 652018), (1343, 536956), (1778, 405586), (2114, 341122), (2159, 334012), (2212, 326009), (2567, 280924), (2686, 268478), (3556, 202793), (4228, 170561), (4318, 167006), (5134, 140462), (5372, 134239), (8636, 83503), (9401, 76708), (10033, 71876), (10268, 70231), (11929, 60452), (15113, 47716), (17969, 40132), (18802, 38354), (19177, 37604), (20066, 35938), (23858, 30226)]