280881412

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{337}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 604333184

約数和(自身を除く): 323451772

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 103, 119, 206, 238, 289, 337, 412, 476, 578, 674, 721, 1156, 1348, 1442, 1751, 2023, 2359, 2884, 3502, 4046, 4718, 5729, 7004, 8092, 9436, 11458, 12257, 22916, 24514, 29767, 34711, 40103, 49028, 59534, 69422, 80206, 97393, 119068, 138844, 160412, 194786, 208369, 242977, 389572, 416738, 485954, 590087, 681751, 833476, 971908, 1180174, 1363502, 2360348, 2727004, 4130609, 8261218, 10031479, 16522436, 20062958, 40125916, 70220353, 140440706, 280881412]

約数ペア:

[(1, 280881412), (2, 140440706), (4, 70220353), (7, 40125916), (14, 20062958), (17, 16522436), (28, 10031479), (34, 8261218), (68, 4130609), (103, 2727004), (119, 2360348), (206, 1363502), (238, 1180174), (289, 971908), (337, 833476), (412, 681751), (476, 590087), (578, 485954), (674, 416738), (721, 389572), (1156, 242977), (1348, 208369), (1442, 194786), (1751, 160412), (2023, 138844), (2359, 119068), (2884, 97393), (3502, 80206), (4046, 69422), (4718, 59534), (5729, 49028), (7004, 40103), (8092, 34711), (9436, 29767), (11458, 24514), (12257, 22916)]