87990028

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 197406720

約数和(自身を除く): 109416692

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 62, 67, 68, 89, 119, 124, 134, 178, 217, 238, 268, 356, 434, 469, 476, 527, 623, 868, 938, 1054, 1139, 1246, 1513, 1876, 2077, 2108, 2278, 2492, 2759, 3026, 3689, 4154, 4556, 5518, 5963, 6052, 7378, 7973, 8308, 10591, 11036, 11926, 14539, 14756, 15946, 19313, 21182, 23852, 29078, 31892, 35309, 38626, 41741, 42364, 46903, 58156, 70618, 77252, 83482, 93806, 101371, 141236, 166964, 184853, 187612, 202742, 247163, 328321, 369706, 405484, 494326, 656642, 709597, 739412, 988652, 1293971, 1313284, 1419194, 2587942, 2838388, 3142501, 5175884, 6285002, 12570004, 21997507, 43995014, 87990028]

約数ペア:

[(1, 87990028), (2, 43995014), (4, 21997507), (7, 12570004), (14, 6285002), (17, 5175884), (28, 3142501), (31, 2838388), (34, 2587942), (62, 1419194), (67, 1313284), (68, 1293971), (89, 988652), (119, 739412), (124, 709597), (134, 656642), (178, 494326), (217, 405484), (238, 369706), (268, 328321), (356, 247163), (434, 202742), (469, 187612), (476, 184853), (527, 166964), (623, 141236), (868, 101371), (938, 93806), (1054, 83482), (1139, 77252), (1246, 70618), (1513, 58156), (1876, 46903), (2077, 42364), (2108, 41741), (2278, 38626), (2492, 35309), (2759, 31892), (3026, 29078), (3689, 23852), (4154, 21182), (4556, 19313), (5518, 15946), (5963, 14756), (6052, 14539), (7378, 11926), (7973, 11036), (8308, 10591)]