15691915520

素因数分解:

$2^8\times 5^1\times {\mathrm{311}}^1\times {\mathrm{39419}}^1$

素因数の和:39751

約数の個数: 72

約数和(自身を含む): 37708856640

約数和(自身を除く): 22016941120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 311, 320, 622, 640, 1244, 1280, 1555, 2488, 3110, 4976, 6220, 9952, 12440, 19904, 24880, 39419, 39808, 49760, 78838, 79616, 99520, 157676, 197095, 199040, 315352, 394190, 398080, 630704, 788380, 1261408, 1576760, 2522816, 3153520, 5045632, 6307040, 10091264, 12259309, 12614080, 24518618, 25228160, 49037236, 50456320, 61296545, 98074472, 122593090, 196148944, 245186180, 392297888, 490372360, 784595776, 980744720, 1569191552, 1961489440, 3138383104, 3922978880, 7845957760, 15691915520]

約数ペア:

[(1, 15691915520), (2, 7845957760), (4, 3922978880), (5, 3138383104), (8, 1961489440), (10, 1569191552), (16, 980744720), (20, 784595776), (32, 490372360), (40, 392297888), (64, 245186180), (80, 196148944), (128, 122593090), (160, 98074472), (256, 61296545), (311, 50456320), (320, 49037236), (622, 25228160), (640, 24518618), (1244, 12614080), (1280, 12259309), (1555, 10091264), (2488, 6307040), (3110, 5045632), (4976, 3153520), (6220, 2522816), (9952, 1576760), (12440, 1261408), (19904, 788380), (24880, 630704), (39419, 398080), (39808, 394190), (49760, 315352), (78838, 199040), (79616, 197095), (99520, 157676)]