81705735

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 145566720

約数和(自身を除く): 63860985

約数列:

[1, 3, 5, 9, 15, 45, 71, 107, 213, 239, 321, 355, 535, 639, 717, 963, 1065, 1195, 1605, 2151, 3195, 3585, 4815, 7597, 10755, 16969, 22791, 25573, 37985, 50907, 68373, 76719, 84845, 113955, 127865, 152721, 230157, 254535, 341865, 383595, 763605, 1150785, 1815683, 5447049, 9078415, 16341147, 27235245, 81705735]

約数ペア:

[(1, 81705735), (3, 27235245), (5, 16341147), (9, 9078415), (15, 5447049), (45, 1815683), (71, 1150785), (107, 763605), (213, 383595), (239, 341865), (321, 254535), (355, 230157), (535, 152721), (639, 127865), (717, 113955), (963, 84845), (1065, 76719), (1195, 68373), (1605, 50907), (2151, 37985), (3195, 25573), (3585, 22791), (4815, 16969), (7597, 10755)]