65679220

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{20147}}^1$

素因数の和:20319

約数の個数: 24

約数和(自身を含む): 138779424

約数和(自身を除く): 73100204

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 20147, 40294, 80588, 100735, 201470, 402940, 3283961, 6567922, 13135844, 16419805, 32839610, 65679220]

約数ペア:

[(1, 65679220), (2, 32839610), (4, 16419805), (5, 13135844), (10, 6567922), (20, 3283961), (163, 402940), (326, 201470), (652, 100735), (815, 80588), (1630, 40294), (3260, 20147)]