20115288

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{569}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 54685800

約数和(自身を除く): 34570512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 569, 982, 1138, 1473, 1707, 1964, 2276, 2946, 3414, 3928, 4419, 4552, 5121, 5892, 6828, 8838, 10242, 11784, 13656, 17676, 20484, 35352, 40968, 279379, 558758, 838137, 1117516, 1676274, 2235032, 2514411, 3352548, 5028822, 6705096, 10057644, 20115288]

約数ペア:

[(1, 20115288), (2, 10057644), (3, 6705096), (4, 5028822), (6, 3352548), (8, 2514411), (9, 2235032), (12, 1676274), (18, 1117516), (24, 838137), (36, 558758), (72, 279379), (491, 40968), (569, 35352), (982, 20484), (1138, 17676), (1473, 13656), (1707, 11784), (1964, 10242), (2276, 8838), (2946, 6828), (3414, 5892), (3928, 5121), (4419, 4552)]