18230820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{977}}^1$

素因数の和:1300

約数の個数: 48

約数和(自身を含む): 51262848

約数和(自身を除く): 33032028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 977, 1244, 1555, 1866, 1954, 2931, 3110, 3732, 3908, 4665, 4885, 5862, 6220, 9330, 9770, 11724, 14655, 18660, 19540, 29310, 58620, 303847, 607694, 911541, 1215388, 1519235, 1823082, 3038470, 3646164, 4557705, 6076940, 9115410, 18230820]

約数ペア:

[(1, 18230820), (2, 9115410), (3, 6076940), (4, 4557705), (5, 3646164), (6, 3038470), (10, 1823082), (12, 1519235), (15, 1215388), (20, 911541), (30, 607694), (60, 303847), (311, 58620), (622, 29310), (933, 19540), (977, 18660), (1244, 14655), (1555, 11724), (1866, 9770), (1954, 9330), (2931, 6220), (3110, 5862), (3732, 4885), (3908, 4665)]