78664960

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 212510592

約数和(自身を除く): 133845632

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 128, 148, 151, 160, 176, 185, 220, 256, 296, 302, 320, 352, 370, 407, 440, 592, 604, 640, 704, 740, 755, 814, 880, 1184, 1208, 1280, 1408, 1480, 1510, 1628, 1661, 1760, 2035, 2368, 2416, 2816, 2960, 3020, 3256, 3322, 3520, 4070, 4736, 4832, 5587, 5920, 6040, 6512, 6644, 7040, 8140, 8305, 9472, 9664, 11174, 11840, 12080, 13024, 13288, 14080, 16280, 16610, 19328, 22348, 23680, 24160, 26048, 26576, 27935, 32560, 33220, 38656, 44696, 47360, 48320, 52096, 53152, 55870, 61457, 65120, 66440, 89392, 96640, 104192, 106304, 111740, 122914, 130240, 132880, 178784, 193280, 212608, 223480, 245828, 260480, 265760, 307285, 357568, 425216, 446960, 491656, 520960, 531520, 614570, 715136, 893920, 983312, 1063040, 1229140, 1430272, 1787840, 1966624, 2126080, 2458280, 3575680, 3933248, 4916560, 7151360, 7866496, 9833120, 15732992, 19666240, 39332480, 78664960]

約数ペア:

[(1, 78664960), (2, 39332480), (4, 19666240), (5, 15732992), (8, 9833120), (10, 7866496), (11, 7151360), (16, 4916560), (20, 3933248), (22, 3575680), (32, 2458280), (37, 2126080), (40, 1966624), (44, 1787840), (55, 1430272), (64, 1229140), (74, 1063040), (80, 983312), (88, 893920), (110, 715136), (128, 614570), (148, 531520), (151, 520960), (160, 491656), (176, 446960), (185, 425216), (220, 357568), (256, 307285), (296, 265760), (302, 260480), (320, 245828), (352, 223480), (370, 212608), (407, 193280), (440, 178784), (592, 132880), (604, 130240), (640, 122914), (704, 111740), (740, 106304), (755, 104192), (814, 96640), (880, 89392), (1184, 66440), (1208, 65120), (1280, 61457), (1408, 55870), (1480, 53152), (1510, 52096), (1628, 48320), (1661, 47360), (1760, 44696), (2035, 38656), (2368, 33220), (2416, 32560), (2816, 27935), (2960, 26576), (3020, 26048), (3256, 24160), (3322, 23680), (3520, 22348), (4070, 19328), (4736, 16610), (4832, 16280), (5587, 14080), (5920, 13288), (6040, 13024), (6512, 12080), (6644, 11840), (7040, 11174), (8140, 9664), (8305, 9472)]