690775260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1644703}}^1$

素因数の和:1644722

約数の個数: 48

約数和(自身を含む): 2210482176

約数和(自身を除く): 1519706916

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1644703, 3289406, 4934109, 6578812, 8223515, 9868218, 11512921, 16447030, 19736436, 23025842, 24670545, 32894060, 34538763, 46051684, 49341090, 57564605, 69077526, 98682180, 115129210, 138155052, 172693815, 230258420, 345387630, 690775260]

約数ペア:

[(1, 690775260), (2, 345387630), (3, 230258420), (4, 172693815), (5, 138155052), (6, 115129210), (7, 98682180), (10, 69077526), (12, 57564605), (14, 49341090), (15, 46051684), (20, 34538763), (21, 32894060), (28, 24670545), (30, 23025842), (35, 19736436), (42, 16447030), (60, 11512921), (70, 9868218), (84, 8223515), (105, 6578812), (140, 4934109), (210, 3289406), (420, 1644703)]