8146480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 19195200

約数和(自身を除く): 11048720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1289, 1580, 2578, 3160, 5156, 6320, 6445, 10312, 12890, 20624, 25780, 51560, 101831, 103120, 203662, 407324, 509155, 814648, 1018310, 1629296, 2036620, 4073240, 8146480]

約数ペア:

[(1, 8146480), (2, 4073240), (4, 2036620), (5, 1629296), (8, 1018310), (10, 814648), (16, 509155), (20, 407324), (40, 203662), (79, 103120), (80, 101831), (158, 51560), (316, 25780), (395, 20624), (632, 12890), (790, 10312), (1264, 6445), (1289, 6320), (1580, 5156), (2578, 3160)]