642347776

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^2\times {\mathrm{373}}^1$

素因数の和:458

約数の個数: 108

約数和(自身を含む): 1518209616

約数和(自身を除く): 875861840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 373, 434, 448, 496, 746, 868, 896, 961, 992, 1492, 1736, 1792, 1922, 1984, 2611, 2984, 3472, 3844, 3968, 5222, 5968, 6727, 6944, 7688, 7936, 10444, 11563, 11936, 13454, 13888, 15376, 20888, 23126, 23872, 26908, 27776, 30752, 41776, 46252, 47744, 53816, 55552, 61504, 80941, 83552, 92504, 95488, 107632, 123008, 161882, 167104, 185008, 215264, 246016, 323764, 334208, 358453, 370016, 430528, 647528, 668416, 716906, 740032, 861056, 1295056, 1433812, 1480064, 1722112, 2509171, 2590112, 2867624, 2960128, 5018342, 5180224, 5735248, 10036684, 10360448, 11470496, 20073368, 20720896, 22940992, 40146736, 45881984, 80293472, 91763968, 160586944, 321173888, 642347776]

約数ペア:

[(1, 642347776), (2, 321173888), (4, 160586944), (7, 91763968), (8, 80293472), (14, 45881984), (16, 40146736), (28, 22940992), (31, 20720896), (32, 20073368), (56, 11470496), (62, 10360448), (64, 10036684), (112, 5735248), (124, 5180224), (128, 5018342), (217, 2960128), (224, 2867624), (248, 2590112), (256, 2509171), (373, 1722112), (434, 1480064), (448, 1433812), (496, 1295056), (746, 861056), (868, 740032), (896, 716906), (961, 668416), (992, 647528), (1492, 430528), (1736, 370016), (1792, 358453), (1922, 334208), (1984, 323764), (2611, 246016), (2984, 215264), (3472, 185008), (3844, 167104), (3968, 161882), (5222, 123008), (5968, 107632), (6727, 95488), (6944, 92504), (7688, 83552), (7936, 80941), (10444, 61504), (11563, 55552), (11936, 53816), (13454, 47744), (13888, 46252), (15376, 41776), (20888, 30752), (23126, 27776), (23872, 26908)]