87815560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 128

約数和(自身を含む): 238141440

約数和(自身を除く): 150325880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 67, 70, 124, 134, 140, 151, 155, 217, 248, 268, 280, 302, 310, 335, 434, 469, 536, 604, 620, 670, 755, 868, 938, 1057, 1085, 1208, 1240, 1340, 1510, 1736, 1876, 2077, 2114, 2170, 2345, 2680, 3020, 3752, 4154, 4228, 4340, 4681, 4690, 5285, 6040, 8308, 8456, 8680, 9362, 9380, 10117, 10385, 10570, 14539, 16616, 18724, 18760, 20234, 20770, 21140, 23405, 29078, 32767, 37448, 40468, 41540, 42280, 46810, 50585, 58156, 65534, 70819, 72695, 80936, 83080, 93620, 101170, 116312, 131068, 141638, 145390, 163835, 187240, 202340, 262136, 283276, 290780, 313627, 327670, 354095, 404680, 566552, 581560, 627254, 655340, 708190, 1254508, 1310680, 1416380, 1568135, 2195389, 2509016, 2832760, 3136270, 4390778, 6272540, 8781556, 10976945, 12545080, 17563112, 21953890, 43907780, 87815560]

約数ペア:

[(1, 87815560), (2, 43907780), (4, 21953890), (5, 17563112), (7, 12545080), (8, 10976945), (10, 8781556), (14, 6272540), (20, 4390778), (28, 3136270), (31, 2832760), (35, 2509016), (40, 2195389), (56, 1568135), (62, 1416380), (67, 1310680), (70, 1254508), (124, 708190), (134, 655340), (140, 627254), (151, 581560), (155, 566552), (217, 404680), (248, 354095), (268, 327670), (280, 313627), (302, 290780), (310, 283276), (335, 262136), (434, 202340), (469, 187240), (536, 163835), (604, 145390), (620, 141638), (670, 131068), (755, 116312), (868, 101170), (938, 93620), (1057, 83080), (1085, 80936), (1208, 72695), (1240, 70819), (1340, 65534), (1510, 58156), (1736, 50585), (1876, 46810), (2077, 42280), (2114, 41540), (2170, 40468), (2345, 37448), (2680, 32767), (3020, 29078), (3752, 23405), (4154, 21140), (4228, 20770), (4340, 20234), (4681, 18760), (4690, 18724), (5285, 16616), (6040, 14539), (8308, 10570), (8456, 10385), (8680, 10117), (9362, 9380)]