721623924

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{977}}^2$

素因数の和:1974

約数の個数: 72

約数和(自身を含む): 2140335680

約数和(自身を除く): 1418711756

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 977, 1954, 2931, 3908, 5862, 6839, 8793, 11724, 13678, 17586, 20517, 26379, 27356, 35172, 41034, 52758, 61551, 82068, 105516, 123102, 184653, 246204, 369306, 738612, 954529, 1909058, 2863587, 3818116, 5727174, 6681703, 8590761, 11454348, 13363406, 17181522, 20045109, 25772283, 26726812, 34363044, 40090218, 51544566, 60135327, 80180436, 103089132, 120270654, 180405981, 240541308, 360811962, 721623924]

約数ペア:

[(1, 721623924), (2, 360811962), (3, 240541308), (4, 180405981), (6, 120270654), (7, 103089132), (9, 80180436), (12, 60135327), (14, 51544566), (18, 40090218), (21, 34363044), (27, 26726812), (28, 25772283), (36, 20045109), (42, 17181522), (54, 13363406), (63, 11454348), (84, 8590761), (108, 6681703), (126, 5727174), (189, 3818116), (252, 2863587), (378, 1909058), (756, 954529), (977, 738612), (1954, 369306), (2931, 246204), (3908, 184653), (5862, 123102), (6839, 105516), (8793, 82068), (11724, 61551), (13678, 52758), (17586, 41034), (20517, 35172), (26379, 27356)]