31289775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 62995968

約数和(自身を除く): 31706193

約数列:

[1, 3, 5, 11, 15, 17, 23, 25, 33, 51, 55, 69, 75, 85, 97, 115, 165, 187, 253, 255, 275, 291, 345, 391, 425, 485, 561, 575, 759, 825, 935, 1067, 1173, 1265, 1275, 1455, 1649, 1725, 1955, 2231, 2425, 2805, 3201, 3795, 4301, 4675, 4947, 5335, 5865, 6325, 6693, 7275, 8245, 9775, 11155, 12903, 14025, 16005, 18139, 18975, 21505, 24541, 24735, 26675, 29325, 33465, 37927, 41225, 54417, 55775, 64515, 73623, 80025, 90695, 107525, 113781, 122705, 123675, 167325, 189635, 272085, 322575, 368115, 417197, 453475, 568905, 613525, 948175, 1251591, 1360425, 1840575, 2085985, 2844525, 6257955, 10429925, 31289775]

約数ペア:

[(1, 31289775), (3, 10429925), (5, 6257955), (11, 2844525), (15, 2085985), (17, 1840575), (23, 1360425), (25, 1251591), (33, 948175), (51, 613525), (55, 568905), (69, 453475), (75, 417197), (85, 368115), (97, 322575), (115, 272085), (165, 189635), (187, 167325), (253, 123675), (255, 122705), (275, 113781), (291, 107525), (345, 90695), (391, 80025), (425, 73623), (485, 64515), (561, 55775), (575, 54417), (759, 41225), (825, 37927), (935, 33465), (1067, 29325), (1173, 26675), (1265, 24735), (1275, 24541), (1455, 21505), (1649, 18975), (1725, 18139), (1955, 16005), (2231, 14025), (2425, 12903), (2805, 11155), (3201, 9775), (3795, 8245), (4301, 7275), (4675, 6693), (4947, 6325), (5335, 5865)]