20111922520

素因数分解:

$2^3\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{257713}}^1$

素因数の和:259675

約数の個数: 32

約数和(自身を含む): 45275195520

約数和(自身を除く): 25163273000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1951, 3902, 7804, 9755, 15608, 19510, 39020, 78040, 257713, 515426, 1030852, 1288565, 2061704, 2577130, 5154260, 10308520, 502798063, 1005596126, 2011192252, 2513990315, 4022384504, 5027980630, 10055961260, 20111922520]

約数ペア:

[(1, 20111922520), (2, 10055961260), (4, 5027980630), (5, 4022384504), (8, 2513990315), (10, 2011192252), (20, 1005596126), (40, 502798063), (1951, 10308520), (3902, 5154260), (7804, 2577130), (9755, 2061704), (15608, 1288565), (19510, 1030852), (39020, 515426), (78040, 257713)]