19389520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 48813840

約数和(自身を除く): 29424320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 68, 80, 85, 106, 136, 170, 212, 265, 269, 272, 340, 424, 530, 538, 680, 848, 901, 1060, 1076, 1345, 1360, 1802, 2120, 2152, 2690, 3604, 4240, 4304, 4505, 4573, 5380, 7208, 9010, 9146, 10760, 14257, 14416, 18020, 18292, 21520, 22865, 28514, 36040, 36584, 45730, 57028, 71285, 72080, 73168, 91460, 114056, 142570, 182920, 228112, 242369, 285140, 365840, 484738, 570280, 969476, 1140560, 1211845, 1938952, 2423690, 3877904, 4847380, 9694760, 19389520]

約数ペア:

[(1, 19389520), (2, 9694760), (4, 4847380), (5, 3877904), (8, 2423690), (10, 1938952), (16, 1211845), (17, 1140560), (20, 969476), (34, 570280), (40, 484738), (53, 365840), (68, 285140), (80, 242369), (85, 228112), (106, 182920), (136, 142570), (170, 114056), (212, 91460), (265, 73168), (269, 72080), (272, 71285), (340, 57028), (424, 45730), (530, 36584), (538, 36040), (680, 28514), (848, 22865), (901, 21520), (1060, 18292), (1076, 18020), (1345, 14416), (1360, 14257), (1802, 10760), (2120, 9146), (2152, 9010), (2690, 7208), (3604, 5380), (4240, 4573), (4304, 4505)]