209507004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1297}}^1$

素因数の和:1955

約数の個数: 72

約数和(自身を含む): 606654048

約数和(自身を除く): 397147044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 641, 1282, 1297, 1923, 2564, 2594, 3846, 3891, 4487, 5188, 5769, 7692, 7782, 8974, 9079, 11538, 11673, 13461, 15564, 17948, 18158, 23076, 23346, 26922, 27237, 36316, 40383, 46692, 53844, 54474, 80766, 81711, 108948, 161532, 163422, 326844, 831377, 1662754, 2494131, 3325508, 4988262, 5819639, 7482393, 9976524, 11639278, 14964786, 17458917, 23278556, 29929572, 34917834, 52376751, 69835668, 104753502, 209507004]

約数ペア:

[(1, 209507004), (2, 104753502), (3, 69835668), (4, 52376751), (6, 34917834), (7, 29929572), (9, 23278556), (12, 17458917), (14, 14964786), (18, 11639278), (21, 9976524), (28, 7482393), (36, 5819639), (42, 4988262), (63, 3325508), (84, 2494131), (126, 1662754), (252, 831377), (641, 326844), (1282, 163422), (1297, 161532), (1923, 108948), (2564, 81711), (2594, 80766), (3846, 54474), (3891, 53844), (4487, 46692), (5188, 40383), (5769, 36316), (7692, 27237), (7782, 26922), (8974, 23346), (9079, 23076), (11538, 18158), (11673, 17948), (13461, 15564)]