661796208

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:831

約数の個数: 120

約数和(自身を含む): 1914127488

約数和(自身を除く): 1252331280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 223, 296, 333, 444, 446, 557, 592, 666, 669, 888, 892, 1114, 1332, 1338, 1671, 1776, 1784, 2007, 2228, 2664, 2676, 3342, 3568, 4014, 4456, 5013, 5328, 5352, 6684, 8028, 8251, 8912, 10026, 10704, 13368, 16056, 16502, 20052, 20609, 24753, 26736, 32112, 33004, 40104, 41218, 49506, 61827, 66008, 74259, 80208, 82436, 99012, 123654, 124211, 132016, 148518, 164872, 185481, 198024, 247308, 248422, 297036, 329744, 370962, 372633, 396048, 494616, 496844, 594072, 741924, 745266, 989232, 993688, 1117899, 1188144, 1483848, 1490532, 1987376, 2235798, 2967696, 2981064, 4471596, 4595807, 5962128, 8943192, 9191614, 13787421, 17886384, 18383228, 27574842, 36766456, 41362263, 55149684, 73532912, 82724526, 110299368, 165449052, 220598736, 330898104, 661796208]

約数ペア:

[(1, 661796208), (2, 330898104), (3, 220598736), (4, 165449052), (6, 110299368), (8, 82724526), (9, 73532912), (12, 55149684), (16, 41362263), (18, 36766456), (24, 27574842), (36, 18383228), (37, 17886384), (48, 13787421), (72, 9191614), (74, 8943192), (111, 5962128), (144, 4595807), (148, 4471596), (222, 2981064), (223, 2967696), (296, 2235798), (333, 1987376), (444, 1490532), (446, 1483848), (557, 1188144), (592, 1117899), (666, 993688), (669, 989232), (888, 745266), (892, 741924), (1114, 594072), (1332, 496844), (1338, 494616), (1671, 396048), (1776, 372633), (1784, 370962), (2007, 329744), (2228, 297036), (2664, 248422), (2676, 247308), (3342, 198024), (3568, 185481), (4014, 164872), (4456, 148518), (5013, 132016), (5328, 124211), (5352, 123654), (6684, 99012), (8028, 82436), (8251, 80208), (8912, 74259), (10026, 66008), (10704, 61827), (13368, 49506), (16056, 41218), (16502, 40104), (20052, 33004), (20609, 32112), (24753, 26736)]