816291260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{2137}}^1$

素因数の和:2486

約数の個数: 48

約数和(自身を含む): 1745634240

約数和(自身を除く): 929342980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 269, 284, 355, 538, 710, 1076, 1345, 1420, 2137, 2690, 4274, 5380, 8548, 10685, 19099, 21370, 38198, 42740, 76396, 95495, 151727, 190990, 303454, 381980, 574853, 606908, 758635, 1149706, 1517270, 2299412, 2874265, 3034540, 5748530, 11497060, 40814563, 81629126, 163258252, 204072815, 408145630, 816291260]

約数ペア:

[(1, 816291260), (2, 408145630), (4, 204072815), (5, 163258252), (10, 81629126), (20, 40814563), (71, 11497060), (142, 5748530), (269, 3034540), (284, 2874265), (355, 2299412), (538, 1517270), (710, 1149706), (1076, 758635), (1345, 606908), (1420, 574853), (2137, 381980), (2690, 303454), (4274, 190990), (5380, 151727), (8548, 95495), (10685, 76396), (19099, 42740), (21370, 38198)]