64003840

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1613}}^1$

素因数の和:1665

約数の個数: 72

約数和(自身を含む): 158352768

約数和(自身を除く): 94348928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1613, 1984, 2480, 3226, 3968, 4960, 6452, 7936, 8065, 9920, 12904, 16130, 19840, 25808, 32260, 39680, 50003, 51616, 64520, 100006, 103232, 129040, 200012, 206464, 250015, 258080, 400024, 412928, 500030, 516160, 800048, 1000060, 1032320, 1600096, 2000120, 2064640, 3200192, 4000240, 6400384, 8000480, 12800768, 16000960, 32001920, 64003840]

約数ペア:

[(1, 64003840), (2, 32001920), (4, 16000960), (5, 12800768), (8, 8000480), (10, 6400384), (16, 4000240), (20, 3200192), (31, 2064640), (32, 2000120), (40, 1600096), (62, 1032320), (64, 1000060), (80, 800048), (124, 516160), (128, 500030), (155, 412928), (160, 400024), (248, 258080), (256, 250015), (310, 206464), (320, 200012), (496, 129040), (620, 103232), (640, 100006), (992, 64520), (1240, 51616), (1280, 50003), (1613, 39680), (1984, 32260), (2480, 25808), (3226, 19840), (3968, 16130), (4960, 12904), (6452, 9920), (7936, 8065)]