31045815

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 27014985

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 71, 79, 123, 135, 205, 213, 237, 355, 369, 395, 615, 639, 711, 1065, 1107, 1185, 1845, 1917, 2133, 2911, 3195, 3239, 3555, 5535, 5609, 8733, 9585, 9717, 10665, 14555, 16195, 16827, 26199, 28045, 29151, 43665, 48585, 50481, 78597, 84135, 87453, 130995, 145755, 151443, 229969, 252405, 392985, 437265, 689907, 757215, 1149845, 2069721, 3449535, 6209163, 10348605, 31045815]

約数ペア:

[(1, 31045815), (3, 10348605), (5, 6209163), (9, 3449535), (15, 2069721), (27, 1149845), (41, 757215), (45, 689907), (71, 437265), (79, 392985), (123, 252405), (135, 229969), (205, 151443), (213, 145755), (237, 130995), (355, 87453), (369, 84135), (395, 78597), (615, 50481), (639, 48585), (711, 43665), (1065, 29151), (1107, 28045), (1185, 26199), (1845, 16827), (1917, 16195), (2133, 14555), (2911, 10665), (3195, 9717), (3239, 9585), (3555, 8733), (5535, 5609)]