20914830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{827}}^1$

素因数の和:1121

約数の個数: 48

約数和(自身を含む): 54638064

約数和(自身を除く): 33723234

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 562, 827, 843, 1405, 1654, 1686, 2481, 2529, 2810, 4135, 4215, 4962, 5058, 7443, 8270, 8430, 12405, 12645, 14886, 24810, 25290, 37215, 74430, 232387, 464774, 697161, 1161935, 1394322, 2091483, 2323870, 3485805, 4182966, 6971610, 10457415, 20914830]

約数ペア:

[(1, 20914830), (2, 10457415), (3, 6971610), (5, 4182966), (6, 3485805), (9, 2323870), (10, 2091483), (15, 1394322), (18, 1161935), (30, 697161), (45, 464774), (90, 232387), (281, 74430), (562, 37215), (827, 25290), (843, 24810), (1405, 14886), (1654, 12645), (1686, 12405), (2481, 8430), (2529, 8270), (2810, 7443), (4135, 5058), (4215, 4962)]