81265410

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{613}}^1$

素因数の和:1120

約数の個数: 64

約数和(自身を含む): 217503360

約数和(自身を除く): 136237950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 491, 613, 982, 1226, 1473, 1839, 2455, 2946, 3065, 3678, 4419, 4910, 5517, 6130, 7365, 8838, 9195, 11034, 13257, 14730, 16551, 18390, 22095, 26514, 27585, 33102, 44190, 55170, 66285, 82755, 132570, 165510, 300983, 601966, 902949, 1504915, 1805898, 2708847, 3009830, 4514745, 5417694, 8126541, 9029490, 13544235, 16253082, 27088470, 40632705, 81265410]

約数ペア:

[(1, 81265410), (2, 40632705), (3, 27088470), (5, 16253082), (6, 13544235), (9, 9029490), (10, 8126541), (15, 5417694), (18, 4514745), (27, 3009830), (30, 2708847), (45, 1805898), (54, 1504915), (90, 902949), (135, 601966), (270, 300983), (491, 165510), (613, 132570), (982, 82755), (1226, 66285), (1473, 55170), (1839, 44190), (2455, 33102), (2946, 27585), (3065, 26514), (3678, 22095), (4419, 18390), (4910, 16551), (5517, 14730), (6130, 13257), (7365, 11034), (8838, 9195)]