2940889720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{5237}}^1$

素因数の和:5488

約数の個数: 64

約数和(自身を含む): 6731877600

約数和(自身を除く): 3790987880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 139, 202, 278, 404, 505, 556, 695, 808, 1010, 1112, 1390, 2020, 2780, 4040, 5237, 5560, 10474, 14039, 20948, 26185, 28078, 41896, 52370, 56156, 70195, 104740, 112312, 140390, 209480, 280780, 528937, 561560, 727943, 1057874, 1455886, 2115748, 2644685, 2911772, 3639715, 4231496, 5289370, 5823544, 7279430, 10578740, 14558860, 21157480, 29117720, 73522243, 147044486, 294088972, 367611215, 588177944, 735222430, 1470444860, 2940889720]

約数ペア:

[(1, 2940889720), (2, 1470444860), (4, 735222430), (5, 588177944), (8, 367611215), (10, 294088972), (20, 147044486), (40, 73522243), (101, 29117720), (139, 21157480), (202, 14558860), (278, 10578740), (404, 7279430), (505, 5823544), (556, 5289370), (695, 4231496), (808, 3639715), (1010, 2911772), (1112, 2644685), (1390, 2115748), (2020, 1455886), (2780, 1057874), (4040, 727943), (5237, 561560), (5560, 528937), (10474, 280780), (14039, 209480), (20948, 140390), (26185, 112312), (28078, 104740), (41896, 70195), (52370, 56156)]