840378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 2239488

約数和(自身を除く): 1399110

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 33, 34, 42, 51, 66, 77, 102, 107, 119, 154, 187, 214, 231, 238, 321, 357, 374, 462, 561, 642, 714, 749, 1122, 1177, 1309, 1498, 1819, 2247, 2354, 2618, 3531, 3638, 3927, 4494, 5457, 7062, 7854, 8239, 10914, 12733, 16478, 20009, 24717, 25466, 38199, 40018, 49434, 60027, 76398, 120054, 140063, 280126, 420189, 840378]

約数ペア:

[(1, 840378), (2, 420189), (3, 280126), (6, 140063), (7, 120054), (11, 76398), (14, 60027), (17, 49434), (21, 40018), (22, 38199), (33, 25466), (34, 24717), (42, 20009), (51, 16478), (66, 12733), (77, 10914), (102, 8239), (107, 7854), (119, 7062), (154, 5457), (187, 4494), (214, 3927), (231, 3638), (238, 3531), (321, 2618), (357, 2354), (374, 2247), (462, 1819), (561, 1498), (642, 1309), (714, 1177), (749, 1122)]