200720990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1\times {\mathrm{809}}^1$

素因数の和:1436

約数の個数: 32

約数和(自身を含む): 370798560

約数和(自身を除く): 170077570

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 577, 809, 1154, 1618, 2885, 4045, 5770, 8090, 24811, 34787, 49622, 69574, 124055, 173935, 248110, 347870, 466793, 933586, 2333965, 4667930, 20072099, 40144198, 100360495, 200720990]

約数ペア:

[(1, 200720990), (2, 100360495), (5, 40144198), (10, 20072099), (43, 4667930), (86, 2333965), (215, 933586), (430, 466793), (577, 347870), (809, 248110), (1154, 173935), (1618, 124055), (2885, 69574), (4045, 49622), (5770, 34787), (8090, 24811)]