641341808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{2551}}^1$

素因数の和:3405

約数の個数: 40

約数和(自身を含む): 1310094720

約数和(自身を除く): 668752912

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 827, 1654, 2551, 3308, 5102, 6616, 10204, 13232, 15713, 20408, 31426, 40816, 48469, 62852, 96938, 125704, 193876, 251408, 387752, 775504, 2109677, 4219354, 8438708, 16877416, 33754832, 40083863, 80167726, 160335452, 320670904, 641341808]

約数ペア:

[(1, 641341808), (2, 320670904), (4, 160335452), (8, 80167726), (16, 40083863), (19, 33754832), (38, 16877416), (76, 8438708), (152, 4219354), (304, 2109677), (827, 775504), (1654, 387752), (2551, 251408), (3308, 193876), (5102, 125704), (6616, 96938), (10204, 62852), (13232, 48469), (15713, 40816), (20408, 31426)]