81587790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{673}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 218376000

約数和(自身を除く): 136788210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 449, 673, 898, 1346, 1347, 2019, 2245, 2694, 3365, 4038, 4041, 4490, 6057, 6730, 6735, 8082, 10095, 12114, 12123, 13470, 18171, 20190, 20205, 24246, 30285, 36342, 40410, 60570, 60615, 90855, 121230, 181710, 302177, 604354, 906531, 1510885, 1813062, 2719593, 3021770, 4532655, 5439186, 8158779, 9065310, 13597965, 16317558, 27195930, 40793895, 81587790]

約数ペア:

[(1, 81587790), (2, 40793895), (3, 27195930), (5, 16317558), (6, 13597965), (9, 9065310), (10, 8158779), (15, 5439186), (18, 4532655), (27, 3021770), (30, 2719593), (45, 1813062), (54, 1510885), (90, 906531), (135, 604354), (270, 302177), (449, 181710), (673, 121230), (898, 90855), (1346, 60615), (1347, 60570), (2019, 40410), (2245, 36342), (2694, 30285), (3365, 24246), (4038, 20205), (4041, 20190), (4490, 18171), (6057, 13470), (6730, 12123), (6735, 12114), (8082, 10095)]