20581620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 60469248

約数和(自身を除く): 39887628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 73, 74, 111, 127, 146, 148, 185, 219, 222, 254, 292, 365, 370, 381, 438, 444, 508, 555, 635, 730, 740, 762, 876, 1095, 1110, 1270, 1460, 1524, 1905, 2190, 2220, 2540, 2701, 3810, 4380, 4699, 5402, 7620, 8103, 9271, 9398, 10804, 13505, 14097, 16206, 18542, 18796, 23495, 27010, 27813, 28194, 32412, 37084, 40515, 46355, 46990, 54020, 55626, 56388, 70485, 81030, 92710, 93980, 111252, 139065, 140970, 162060, 185420, 278130, 281940, 343027, 556260, 686054, 1029081, 1372108, 1715135, 2058162, 3430270, 4116324, 5145405, 6860540, 10290810, 20581620]

約数ペア:

[(1, 20581620), (2, 10290810), (3, 6860540), (4, 5145405), (5, 4116324), (6, 3430270), (10, 2058162), (12, 1715135), (15, 1372108), (20, 1029081), (30, 686054), (37, 556260), (60, 343027), (73, 281940), (74, 278130), (111, 185420), (127, 162060), (146, 140970), (148, 139065), (185, 111252), (219, 93980), (222, 92710), (254, 81030), (292, 70485), (365, 56388), (370, 55626), (381, 54020), (438, 46990), (444, 46355), (508, 40515), (555, 37084), (635, 32412), (730, 28194), (740, 27813), (762, 27010), (876, 23495), (1095, 18796), (1110, 18542), (1270, 16206), (1460, 14097), (1524, 13505), (1905, 10804), (2190, 9398), (2220, 9271), (2540, 8103), (2701, 7620), (3810, 5402), (4380, 4699)]