209638645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 273373056

約数和(自身を除く): 63734411

約数列:

[1, 5, 17, 67, 85, 131, 281, 335, 655, 1139, 1405, 2227, 4777, 5695, 8777, 11135, 18827, 23885, 36811, 43885, 94135, 149209, 184055, 320059, 625787, 746045, 1600295, 2466337, 3128935, 12331685, 41927729, 209638645]

約数ペア:

[(1, 209638645), (5, 41927729), (17, 12331685), (67, 3128935), (85, 2466337), (131, 1600295), (281, 746045), (335, 625787), (655, 320059), (1139, 184055), (1405, 149209), (2227, 94135), (4777, 43885), (5695, 36811), (8777, 23885), (11135, 18827)]