640125924

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1\times {\mathrm{971}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 1509834816

約数和(自身を除く): 869708892

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 401, 411, 548, 802, 822, 971, 1203, 1604, 1644, 1942, 2406, 2913, 3884, 4812, 5826, 11652, 54937, 109874, 133027, 164811, 219748, 266054, 329622, 389371, 399081, 532108, 659244, 778742, 798162, 1168113, 1557484, 1596324, 2336226, 4672452, 53343827, 106687654, 160031481, 213375308, 320062962, 640125924]

約数ペア:

[(1, 640125924), (2, 320062962), (3, 213375308), (4, 160031481), (6, 106687654), (12, 53343827), (137, 4672452), (274, 2336226), (401, 1596324), (411, 1557484), (548, 1168113), (802, 798162), (822, 778742), (971, 659244), (1203, 532108), (1604, 399081), (1644, 389371), (1942, 329622), (2406, 266054), (2913, 219748), (3884, 164811), (4812, 133027), (5826, 109874), (11652, 54937)]