81686925

素因数分解:

$3^2\times 5^2\times {\mathrm{439}}^1\times {\mathrm{827}}^1$

素因数の和:1282

約数の個数: 36

約数和(自身を含む): 146820960

約数和(自身を除く): 65134035

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 439, 827, 1317, 2195, 2481, 3951, 4135, 6585, 7443, 10975, 12405, 19755, 20675, 32925, 37215, 62025, 98775, 186075, 363053, 1089159, 1815265, 3267477, 5445795, 9076325, 16337385, 27228975, 81686925]

約数ペア:

[(1, 81686925), (3, 27228975), (5, 16337385), (9, 9076325), (15, 5445795), (25, 3267477), (45, 1815265), (75, 1089159), (225, 363053), (439, 186075), (827, 98775), (1317, 62025), (2195, 37215), (2481, 32925), (3951, 20675), (4135, 19755), (6585, 12405), (7443, 10975)]