31913880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 103403520

約数和(自身を除く): 71489640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 372, 373, 460, 465, 552, 620, 690, 713, 744, 746, 920, 930, 1119, 1240, 1380, 1426, 1492, 1860, 1865, 2139, 2238, 2760, 2852, 2984, 3565, 3720, 3730, 4278, 4476, 5595, 5704, 7130, 7460, 8556, 8579, 8952, 10695, 11190, 11563, 14260, 14920, 17112, 17158, 21390, 22380, 23126, 25737, 28520, 34316, 34689, 42780, 42895, 44760, 46252, 51474, 57815, 68632, 69378, 85560, 85790, 92504, 102948, 115630, 128685, 138756, 171580, 173445, 205896, 231260, 257370, 265949, 277512, 343160, 346890, 462520, 514740, 531898, 693780, 797847, 1029480, 1063796, 1329745, 1387560, 1595694, 2127592, 2659490, 3191388, 3989235, 5318980, 6382776, 7978470, 10637960, 15956940, 31913880]

約数ペア:

[(1, 31913880), (2, 15956940), (3, 10637960), (4, 7978470), (5, 6382776), (6, 5318980), (8, 3989235), (10, 3191388), (12, 2659490), (15, 2127592), (20, 1595694), (23, 1387560), (24, 1329745), (30, 1063796), (31, 1029480), (40, 797847), (46, 693780), (60, 531898), (62, 514740), (69, 462520), (92, 346890), (93, 343160), (115, 277512), (120, 265949), (124, 257370), (138, 231260), (155, 205896), (184, 173445), (186, 171580), (230, 138756), (248, 128685), (276, 115630), (310, 102948), (345, 92504), (372, 85790), (373, 85560), (460, 69378), (465, 68632), (552, 57815), (620, 51474), (690, 46252), (713, 44760), (744, 42895), (746, 42780), (920, 34689), (930, 34316), (1119, 28520), (1240, 25737), (1380, 23126), (1426, 22380), (1492, 21390), (1860, 17158), (1865, 17112), (2139, 14920), (2238, 14260), (2760, 11563), (2852, 11190), (2984, 10695), (3565, 8952), (3720, 8579), (3730, 8556), (4278, 7460), (4476, 7130), (5595, 5704)]