77680400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{27743}}^1$

素因数の和:27768

約数の個数: 60

約数和(自身を含む): 213295872

約数和(自身を除く): 135615472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 27743, 55486, 110972, 138715, 194201, 221944, 277430, 388402, 443888, 554860, 693575, 776804, 971005, 1109720, 1387150, 1553608, 1942010, 2219440, 2774300, 3107216, 3884020, 4855025, 5548600, 7768040, 9710050, 11097200, 15536080, 19420100, 38840200, 77680400]

約数ペア:

[(1, 77680400), (2, 38840200), (4, 19420100), (5, 15536080), (7, 11097200), (8, 9710050), (10, 7768040), (14, 5548600), (16, 4855025), (20, 3884020), (25, 3107216), (28, 2774300), (35, 2219440), (40, 1942010), (50, 1553608), (56, 1387150), (70, 1109720), (80, 971005), (100, 776804), (112, 693575), (140, 554860), (175, 443888), (200, 388402), (280, 277430), (350, 221944), (400, 194201), (560, 138715), (700, 110972), (1400, 55486), (2800, 27743)]