20722230

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25583}}^1$

素因数の和:25602

約数の個数: 40

約数和(自身を含む): 55721952

約数和(自身を除く): 34999722

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25583, 51166, 76749, 127915, 153498, 230247, 255830, 383745, 460494, 690741, 767490, 1151235, 1381482, 2072223, 2302470, 3453705, 4144446, 6907410, 10361115, 20722230]

約数ペア:

[(1, 20722230), (2, 10361115), (3, 6907410), (5, 4144446), (6, 3453705), (9, 2302470), (10, 2072223), (15, 1381482), (18, 1151235), (27, 767490), (30, 690741), (45, 460494), (54, 383745), (81, 255830), (90, 230247), (135, 153498), (162, 127915), (270, 76749), (405, 51166), (810, 25583)]