16939180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 19832660

約数列:

[1, 2, 4, 5, 10, 20, 71, 79, 142, 151, 158, 284, 302, 316, 355, 395, 604, 710, 755, 790, 1420, 1510, 1580, 3020, 5609, 10721, 11218, 11929, 21442, 22436, 23858, 28045, 42884, 47716, 53605, 56090, 59645, 107210, 112180, 119290, 214420, 238580, 846959, 1693918, 3387836, 4234795, 8469590, 16939180]

約数ペア:

[(1, 16939180), (2, 8469590), (4, 4234795), (5, 3387836), (10, 1693918), (20, 846959), (71, 238580), (79, 214420), (142, 119290), (151, 112180), (158, 107210), (284, 59645), (302, 56090), (316, 53605), (355, 47716), (395, 42884), (604, 28045), (710, 23858), (755, 22436), (790, 21442), (1420, 11929), (1510, 11218), (1580, 10721), (3020, 5609)]