20692560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:245

約数の個数: 160

約数和(自身を含む): 74638080

約数和(自身を除く): 53945520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 113, 120, 140, 168, 210, 218, 226, 240, 280, 327, 336, 339, 420, 436, 452, 545, 560, 565, 654, 678, 763, 791, 840, 872, 904, 1090, 1130, 1308, 1356, 1526, 1582, 1635, 1680, 1695, 1744, 1808, 2180, 2260, 2289, 2373, 2616, 2712, 3052, 3164, 3270, 3390, 3815, 3955, 4360, 4520, 4578, 4746, 5232, 5424, 6104, 6328, 6540, 6780, 7630, 7910, 8720, 9040, 9156, 9492, 11445, 11865, 12208, 12317, 12656, 13080, 13560, 15260, 15820, 18312, 18984, 22890, 23730, 24634, 26160, 27120, 30520, 31640, 36624, 36951, 37968, 45780, 47460, 49268, 61040, 61585, 63280, 73902, 86219, 91560, 94920, 98536, 123170, 147804, 172438, 183120, 184755, 189840, 197072, 246340, 258657, 295608, 344876, 369510, 431095, 492680, 517314, 591216, 689752, 739020, 862190, 985360, 1034628, 1293285, 1379504, 1478040, 1724380, 2069256, 2586570, 2956080, 3448760, 4138512, 5173140, 6897520, 10346280, 20692560]

約数ペア:

[(1, 20692560), (2, 10346280), (3, 6897520), (4, 5173140), (5, 4138512), (6, 3448760), (7, 2956080), (8, 2586570), (10, 2069256), (12, 1724380), (14, 1478040), (15, 1379504), (16, 1293285), (20, 1034628), (21, 985360), (24, 862190), (28, 739020), (30, 689752), (35, 591216), (40, 517314), (42, 492680), (48, 431095), (56, 369510), (60, 344876), (70, 295608), (80, 258657), (84, 246340), (105, 197072), (109, 189840), (112, 184755), (113, 183120), (120, 172438), (140, 147804), (168, 123170), (210, 98536), (218, 94920), (226, 91560), (240, 86219), (280, 73902), (327, 63280), (336, 61585), (339, 61040), (420, 49268), (436, 47460), (452, 45780), (545, 37968), (560, 36951), (565, 36624), (654, 31640), (678, 30520), (763, 27120), (791, 26160), (840, 24634), (872, 23730), (904, 22890), (1090, 18984), (1130, 18312), (1308, 15820), (1356, 15260), (1526, 13560), (1582, 13080), (1635, 12656), (1680, 12317), (1695, 12208), (1744, 11865), (1808, 11445), (2180, 9492), (2260, 9156), (2289, 9040), (2373, 8720), (2616, 7910), (2712, 7630), (3052, 6780), (3164, 6540), (3270, 6328), (3390, 6104), (3815, 5424), (3955, 5232), (4360, 4746), (4520, 4578)]