81480690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6911}}^1$

素因数の和:7055

約数の個数: 48

約数和(自身を含む): 213497856

約数和(自身を除く): 132017166

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1965, 2358, 3930, 5895, 6911, 11790, 13822, 20733, 34555, 41466, 62199, 69110, 103665, 124398, 207330, 310995, 621990, 905341, 1810682, 2716023, 4526705, 5432046, 8148069, 9053410, 13580115, 16296138, 27160230, 40740345, 81480690]

約数ペア:

[(1, 81480690), (2, 40740345), (3, 27160230), (5, 16296138), (6, 13580115), (9, 9053410), (10, 8148069), (15, 5432046), (18, 4526705), (30, 2716023), (45, 1810682), (90, 905341), (131, 621990), (262, 310995), (393, 207330), (655, 124398), (786, 103665), (1179, 69110), (1310, 62199), (1965, 41466), (2358, 34555), (3930, 20733), (5895, 13822), (6911, 11790)]