81254025

素因数分解:

$3^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{1511}}^1$

素因数の和:1766

約数の個数: 36

約数和(自身を含む): 146240640

約数和(自身を除く): 64986615

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 239, 717, 1195, 1511, 2151, 3585, 4533, 5975, 7555, 10755, 13599, 17925, 22665, 37775, 53775, 67995, 113325, 339975, 361129, 1083387, 1805645, 3250161, 5416935, 9028225, 16250805, 27084675, 81254025]

約数ペア:

[(1, 81254025), (3, 27084675), (5, 16250805), (9, 9028225), (15, 5416935), (25, 3250161), (45, 1805645), (75, 1083387), (225, 361129), (239, 339975), (717, 113325), (1195, 67995), (1511, 53775), (2151, 37775), (3585, 22665), (4533, 17925), (5975, 13599), (7555, 10755)]