20156989090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{90071}}^1$

素因数の和:90247

約数の個数: 64

約数和(自身を含む): 43580436480

約数和(自身を除く): 23423447390

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 139, 161, 230, 278, 322, 695, 805, 973, 1390, 1610, 1946, 3197, 4865, 6394, 9730, 15985, 22379, 31970, 44758, 90071, 111895, 180142, 223790, 450355, 630497, 900710, 1260994, 2071633, 3152485, 4143266, 6304970, 10358165, 12519869, 14501431, 20716330, 25039738, 29002862, 62599345, 72507155, 87639083, 125198690, 145014310, 175278166, 287956987, 438195415, 575913974, 876390830, 1439784935, 2015698909, 2879569870, 4031397818, 10078494545, 20156989090]

約数ペア:

[(1, 20156989090), (2, 10078494545), (5, 4031397818), (7, 2879569870), (10, 2015698909), (14, 1439784935), (23, 876390830), (35, 575913974), (46, 438195415), (70, 287956987), (115, 175278166), (139, 145014310), (161, 125198690), (230, 87639083), (278, 72507155), (322, 62599345), (695, 29002862), (805, 25039738), (973, 20716330), (1390, 14501431), (1610, 12519869), (1946, 10358165), (3197, 6304970), (4865, 4143266), (6394, 3152485), (9730, 2071633), (15985, 1260994), (22379, 900710), (31970, 630497), (44758, 450355), (90071, 223790), (111895, 180142)]