77997220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79589}}^1$

素因数の和:79612

約数の個数: 36

約数和(自身を含む): 190538460

約数和(自身を除く): 112541240

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 79589, 159178, 318356, 397945, 557123, 795890, 1114246, 1591780, 2228492, 2785615, 3899861, 5571230, 7799722, 11142460, 15599444, 19499305, 38998610, 77997220]

約数ペア:

[(1, 77997220), (2, 38998610), (4, 19499305), (5, 15599444), (7, 11142460), (10, 7799722), (14, 5571230), (20, 3899861), (28, 2785615), (35, 2228492), (49, 1591780), (70, 1114246), (98, 795890), (140, 557123), (196, 397945), (245, 318356), (490, 159178), (980, 79589)]