31878990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2477}}^1$

素因数の和:2514

約数の個数: 96

約数和(自身を含む): 97415136

約数和(自身を除く): 65536146

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 30, 33, 39, 45, 55, 65, 66, 78, 90, 99, 110, 117, 130, 143, 165, 195, 198, 234, 286, 330, 390, 429, 495, 585, 715, 858, 990, 1170, 1287, 1430, 2145, 2477, 2574, 4290, 4954, 6435, 7431, 12385, 12870, 14862, 22293, 24770, 27247, 32201, 37155, 44586, 54494, 64402, 74310, 81741, 96603, 111465, 136235, 161005, 163482, 193206, 222930, 245223, 272470, 289809, 322010, 354211, 408705, 483015, 490446, 579618, 708422, 817410, 966030, 1062633, 1226115, 1449045, 1771055, 2125266, 2452230, 2898090, 3187899, 3542110, 5313165, 6375798, 10626330, 15939495, 31878990]

約数ペア:

[(1, 31878990), (2, 15939495), (3, 10626330), (5, 6375798), (6, 5313165), (9, 3542110), (10, 3187899), (11, 2898090), (13, 2452230), (15, 2125266), (18, 1771055), (22, 1449045), (26, 1226115), (30, 1062633), (33, 966030), (39, 817410), (45, 708422), (55, 579618), (65, 490446), (66, 483015), (78, 408705), (90, 354211), (99, 322010), (110, 289809), (117, 272470), (130, 245223), (143, 222930), (165, 193206), (195, 163482), (198, 161005), (234, 136235), (286, 111465), (330, 96603), (390, 81741), (429, 74310), (495, 64402), (585, 54494), (715, 44586), (858, 37155), (990, 32201), (1170, 27247), (1287, 24770), (1430, 22293), (2145, 14862), (2477, 12870), (2574, 12385), (4290, 7431), (4954, 6435)]