82891520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2141

約数の個数: 72

約数和(自身を含む): 205054080

約数和(自身を除く): 122162560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2089, 2480, 3968, 4178, 4960, 7936, 8356, 9920, 10445, 16712, 19840, 20890, 33424, 39680, 41780, 64759, 66848, 83560, 129518, 133696, 167120, 259036, 267392, 323795, 334240, 518072, 534784, 647590, 668480, 1036144, 1295180, 1336960, 2072288, 2590360, 2673920, 4144576, 5180720, 8289152, 10361440, 16578304, 20722880, 41445760, 82891520]

約数ペア:

[(1, 82891520), (2, 41445760), (4, 20722880), (5, 16578304), (8, 10361440), (10, 8289152), (16, 5180720), (20, 4144576), (31, 2673920), (32, 2590360), (40, 2072288), (62, 1336960), (64, 1295180), (80, 1036144), (124, 668480), (128, 647590), (155, 534784), (160, 518072), (248, 334240), (256, 323795), (310, 267392), (320, 259036), (496, 167120), (620, 133696), (640, 129518), (992, 83560), (1240, 66848), (1280, 64759), (1984, 41780), (2089, 39680), (2480, 33424), (3968, 20890), (4178, 19840), (4960, 16712), (7936, 10445), (8356, 9920)]