20696690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 44782848

約数和(自身を除く): 24086158

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 61, 70, 74, 122, 131, 185, 259, 262, 305, 370, 427, 518, 610, 655, 854, 917, 1295, 1310, 1834, 2135, 2257, 2590, 4270, 4514, 4585, 4847, 7991, 9170, 9694, 11285, 15799, 15982, 22570, 24235, 31598, 33929, 39955, 48470, 55937, 67858, 78995, 79910, 111874, 157990, 169645, 279685, 295667, 339290, 559370, 591334, 1478335, 2069669, 2956670, 4139338, 10348345, 20696690]

約数ペア:

[(1, 20696690), (2, 10348345), (5, 4139338), (7, 2956670), (10, 2069669), (14, 1478335), (35, 591334), (37, 559370), (61, 339290), (70, 295667), (74, 279685), (122, 169645), (131, 157990), (185, 111874), (259, 79910), (262, 78995), (305, 67858), (370, 55937), (427, 48470), (518, 39955), (610, 33929), (655, 31598), (854, 24235), (917, 22570), (1295, 15982), (1310, 15799), (1834, 11285), (2135, 9694), (2257, 9170), (2590, 7991), (4270, 4847), (4514, 4585)]