1640479204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{145381}}^1$

素因数の和:145436

約数の個数: 48

約数和(自身を含む): 3647343616

約数和(自身を除く): 2006864412

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 2821, 5642, 11284, 145381, 290762, 581524, 1017667, 1889953, 2035334, 3779906, 4070668, 4506811, 7559812, 9013622, 13229671, 18027244, 26459342, 31547677, 52918684, 58588543, 63095354, 117177086, 126190708, 234354172, 410119801, 820239602, 1640479204]

約数ペア:

[(1, 1640479204), (2, 820239602), (4, 410119801), (7, 234354172), (13, 126190708), (14, 117177086), (26, 63095354), (28, 58588543), (31, 52918684), (52, 31547677), (62, 26459342), (91, 18027244), (124, 13229671), (182, 9013622), (217, 7559812), (364, 4506811), (403, 4070668), (434, 3779906), (806, 2035334), (868, 1889953), (1612, 1017667), (2821, 581524), (5642, 290762), (11284, 145381)]