1212853820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{4019}}^1$

素因数の和:4298

約数の個数: 48

約数和(自身を含む): 2593382400

約数和(自身を除く): 1380528580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 191, 316, 382, 395, 764, 790, 955, 1580, 1910, 3820, 4019, 8038, 15089, 16076, 20095, 30178, 40190, 60356, 75445, 80380, 150890, 301780, 317501, 635002, 767629, 1270004, 1535258, 1587505, 3070516, 3175010, 3838145, 6350020, 7676290, 15352580, 60642691, 121285382, 242570764, 303213455, 606426910, 1212853820]

約数ペア:

[(1, 1212853820), (2, 606426910), (4, 303213455), (5, 242570764), (10, 121285382), (20, 60642691), (79, 15352580), (158, 7676290), (191, 6350020), (316, 3838145), (382, 3175010), (395, 3070516), (764, 1587505), (790, 1535258), (955, 1270004), (1580, 767629), (1910, 635002), (3820, 317501), (4019, 301780), (8038, 150890), (15089, 80380), (16076, 75445), (20095, 60356), (30178, 40190)]