20289702970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{278743}}^1$

素因数の和:279030

約数の個数: 32

約数和(自身を含む): 37931483520

約数和(自身を除く): 17641780550

約数列:

[1, 2, 5, 10, 29, 58, 145, 251, 290, 502, 1255, 2510, 7279, 14558, 36395, 72790, 278743, 557486, 1393715, 2787430, 8083547, 16167094, 40417735, 69964493, 80835470, 139928986, 349822465, 699644930, 2028970297, 4057940594, 10144851485, 20289702970]

約数ペア:

[(1, 20289702970), (2, 10144851485), (5, 4057940594), (10, 2028970297), (29, 699644930), (58, 349822465), (145, 139928986), (251, 80835470), (290, 69964493), (502, 40417735), (1255, 16167094), (2510, 8083547), (7279, 2787430), (14558, 1393715), (36395, 557486), (72790, 278743)]