8457301.000000000

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 160

約数和(自身を含む): 308551680

約数和(自身を除く): 198853840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 71, 80, 89, 112, 124, 140, 142, 155, 178, 217, 248, 280, 284, 310, 355, 356, 434, 445, 496, 497, 560, 568, 620, 623, 710, 712, 868, 890, 994, 1085, 1136, 1240, 1246, 1420, 1424, 1736, 1780, 1988, 2170, 2201, 2480, 2485, 2492, 2759, 2840, 3115, 3472, 3560, 3976, 4340, 4402, 4970, 4984, 5518, 5680, 6230, 6319, 7120, 7952, 8680, 8804, 9940, 9968, 11005, 11036, 12460, 12638, 13795, 15407, 17360, 17608, 19313, 19880, 22010, 22072, 24920, 25276, 27590, 30814, 31595, 35216, 38626, 39760, 44020, 44144, 44233, 49840, 50552, 55180, 61628, 63190, 77035, 77252, 88040, 88466, 96565, 101104, 110360, 123256, 126380, 154070, 154504, 176080, 176932, 193130, 195889, 220720, 221165, 246512, 252760, 308140, 309008, 353864, 386260, 391778, 442330, 505520, 616280, 707728, 772520, 783556, 884660, 979445, 1232560, 1371223, 1545040, 1567112, 1769320, 1958890, 2742446, 3134224, 3538640, 3917780, 5484892, 6856115, 7835560, 10969784, 13712230, 15671120, 21939568, 27424460, 54848920, 109697840]

約数ペア:

[(1, 109697840), (2, 54848920), (4, 27424460), (5, 21939568), (7, 15671120), (8, 13712230), (10, 10969784), (14, 7835560), (16, 6856115), (20, 5484892), (28, 3917780), (31, 3538640), (35, 3134224), (40, 2742446), (56, 1958890), (62, 1769320), (70, 1567112), (71, 1545040), (80, 1371223), (89, 1232560), (112, 979445), (124, 884660), (140, 783556), (142, 772520), (155, 707728), (178, 616280), (217, 505520), (248, 442330), (280, 391778), (284, 386260), (310, 353864), (355, 309008), (356, 308140), (434, 252760), (445, 246512), (496, 221165), (497, 220720), (560, 195889), (568, 193130), (620, 176932), (623, 176080), (710, 154504), (712, 154070), (868, 126380), (890, 123256), (994, 110360), (1085, 101104), (1136, 96565), (1240, 88466), (1246, 88040), (1420, 77252), (1424, 77035), (1736, 63190), (1780, 61628), (1988, 55180), (2170, 50552), (2201, 49840), (2480, 44233), (2485, 44144), (2492, 44020), (2759, 39760), (2840, 38626), (3115, 35216), (3472, 31595), (3560, 30814), (3976, 27590), (4340, 25276), (4402, 24920), (4970, 22072), (4984, 22010), (5518, 19880), (5680, 19313), (6230, 17608), (6319, 17360), (7120, 15407), (7952, 13795), (8680, 12638), (8804, 12460), (9940, 11036), (9968, 11005)]