81645360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3121}}^1$

素因数の和:3246

約数の個数: 80

約数和(自身を含む): 255504480

約数和(自身を除く): 173859120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 872, 1090, 1308, 1635, 1744, 2180, 2616, 3121, 3270, 4360, 5232, 6242, 6540, 8720, 9363, 12484, 13080, 15605, 18726, 24968, 26160, 31210, 37452, 46815, 49936, 62420, 74904, 93630, 124840, 149808, 187260, 249680, 340189, 374520, 680378, 749040, 1020567, 1360756, 1700945, 2041134, 2721512, 3401890, 4082268, 5102835, 5443024, 6803780, 8164536, 10205670, 13607560, 16329072, 20411340, 27215120, 40822680, 81645360]

約数ペア:

[(1, 81645360), (2, 40822680), (3, 27215120), (4, 20411340), (5, 16329072), (6, 13607560), (8, 10205670), (10, 8164536), (12, 6803780), (15, 5443024), (16, 5102835), (20, 4082268), (24, 3401890), (30, 2721512), (40, 2041134), (48, 1700945), (60, 1360756), (80, 1020567), (109, 749040), (120, 680378), (218, 374520), (240, 340189), (327, 249680), (436, 187260), (545, 149808), (654, 124840), (872, 93630), (1090, 74904), (1308, 62420), (1635, 49936), (1744, 46815), (2180, 37452), (2616, 31210), (3121, 26160), (3270, 24968), (4360, 18726), (5232, 15605), (6242, 13080), (6540, 12484), (8720, 9363)]