781440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:70

約数の個数: 128

約数和(自身を含む): 2790720

約数和(自身を除く): 2009280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 37, 40, 44, 48, 55, 60, 64, 66, 74, 80, 88, 96, 110, 111, 120, 128, 132, 148, 160, 165, 176, 185, 192, 220, 222, 240, 264, 296, 320, 330, 352, 370, 384, 407, 440, 444, 480, 528, 555, 592, 640, 660, 704, 740, 814, 880, 888, 960, 1056, 1110, 1184, 1221, 1320, 1408, 1480, 1628, 1760, 1776, 1920, 2035, 2112, 2220, 2368, 2442, 2640, 2960, 3256, 3520, 3552, 4070, 4224, 4440, 4736, 4884, 5280, 5920, 6105, 6512, 7040, 7104, 8140, 8880, 9768, 10560, 11840, 12210, 13024, 14208, 16280, 17760, 19536, 21120, 23680, 24420, 26048, 32560, 35520, 39072, 48840, 52096, 65120, 71040, 78144, 97680, 130240, 156288, 195360, 260480, 390720, 781440]

約数ペア:

[(1, 781440), (2, 390720), (3, 260480), (4, 195360), (5, 156288), (6, 130240), (8, 97680), (10, 78144), (11, 71040), (12, 65120), (15, 52096), (16, 48840), (20, 39072), (22, 35520), (24, 32560), (30, 26048), (32, 24420), (33, 23680), (37, 21120), (40, 19536), (44, 17760), (48, 16280), (55, 14208), (60, 13024), (64, 12210), (66, 11840), (74, 10560), (80, 9768), (88, 8880), (96, 8140), (110, 7104), (111, 7040), (120, 6512), (128, 6105), (132, 5920), (148, 5280), (160, 4884), (165, 4736), (176, 4440), (185, 4224), (192, 4070), (220, 3552), (222, 3520), (240, 3256), (264, 2960), (296, 2640), (320, 2442), (330, 2368), (352, 2220), (370, 2112), (384, 2035), (407, 1920), (440, 1776), (444, 1760), (480, 1628), (528, 1480), (555, 1408), (592, 1320), (640, 1221), (660, 1184), (704, 1110), (740, 1056), (814, 960), (880, 888)]