19120280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 45489600

約数和(自身を除く): 26369320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 53, 58, 106, 116, 145, 212, 232, 265, 290, 311, 424, 530, 580, 622, 1060, 1160, 1244, 1537, 1555, 2120, 2488, 3074, 3110, 6148, 6220, 7685, 9019, 12296, 12440, 15370, 16483, 18038, 30740, 32966, 36076, 45095, 61480, 65932, 72152, 82415, 90190, 131864, 164830, 180380, 329660, 360760, 478007, 659320, 956014, 1912028, 2390035, 3824056, 4780070, 9560140, 19120280]

約数ペア:

[(1, 19120280), (2, 9560140), (4, 4780070), (5, 3824056), (8, 2390035), (10, 1912028), (20, 956014), (29, 659320), (40, 478007), (53, 360760), (58, 329660), (106, 180380), (116, 164830), (145, 131864), (212, 90190), (232, 82415), (265, 72152), (290, 65932), (311, 61480), (424, 45095), (530, 36076), (580, 32966), (622, 30740), (1060, 18038), (1160, 16483), (1244, 15370), (1537, 12440), (1555, 12296), (2120, 9019), (2488, 7685), (3074, 6220), (3110, 6148)]