2671780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 6048000

約数和(自身を除く): 3376220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 89, 95, 158, 178, 190, 316, 356, 380, 395, 445, 790, 890, 1501, 1580, 1691, 1780, 3002, 3382, 6004, 6764, 7031, 7505, 8455, 14062, 15010, 16910, 28124, 30020, 33820, 35155, 70310, 133589, 140620, 267178, 534356, 667945, 1335890, 2671780]

約数ペア:

[(1, 2671780), (2, 1335890), (4, 667945), (5, 534356), (10, 267178), (19, 140620), (20, 133589), (38, 70310), (76, 35155), (79, 33820), (89, 30020), (95, 28124), (158, 16910), (178, 15010), (190, 14062), (316, 8455), (356, 7505), (380, 7031), (395, 6764), (445, 6004), (790, 3382), (890, 3002), (1501, 1780), (1580, 1691)]