797440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{89}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 2207520

約数和(自身を除く): 1410080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 256, 280, 320, 356, 445, 448, 560, 623, 640, 712, 890, 896, 1120, 1246, 1280, 1424, 1780, 1792, 2240, 2492, 2848, 3115, 3560, 4480, 4984, 5696, 6230, 7120, 8960, 9968, 11392, 12460, 14240, 19936, 22784, 24920, 28480, 39872, 49840, 56960, 79744, 99680, 113920, 159488, 199360, 398720, 797440]

約数ペア:

[(1, 797440), (2, 398720), (4, 199360), (5, 159488), (7, 113920), (8, 99680), (10, 79744), (14, 56960), (16, 49840), (20, 39872), (28, 28480), (32, 24920), (35, 22784), (40, 19936), (56, 14240), (64, 12460), (70, 11392), (80, 9968), (89, 8960), (112, 7120), (128, 6230), (140, 5696), (160, 4984), (178, 4480), (224, 3560), (256, 3115), (280, 2848), (320, 2492), (356, 2240), (445, 1792), (448, 1780), (560, 1424), (623, 1280), (640, 1246), (712, 1120), (890, 896)]