57123760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 137401920

約数和(自身を除く): 80278160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 89, 113, 142, 178, 226, 284, 355, 356, 445, 452, 565, 568, 710, 712, 890, 904, 1130, 1136, 1420, 1424, 1780, 1808, 2260, 2840, 3560, 4520, 5680, 6319, 7120, 8023, 9040, 10057, 12638, 16046, 20114, 25276, 31595, 32092, 40115, 40228, 50285, 50552, 63190, 64184, 80230, 80456, 100570, 101104, 126380, 128368, 160460, 160912, 201140, 252760, 320920, 402280, 505520, 641840, 714047, 804560, 1428094, 2856188, 3570235, 5712376, 7140470, 11424752, 14280940, 28561880, 57123760]

約数ペア:

[(1, 57123760), (2, 28561880), (4, 14280940), (5, 11424752), (8, 7140470), (10, 5712376), (16, 3570235), (20, 2856188), (40, 1428094), (71, 804560), (80, 714047), (89, 641840), (113, 505520), (142, 402280), (178, 320920), (226, 252760), (284, 201140), (355, 160912), (356, 160460), (445, 128368), (452, 126380), (565, 101104), (568, 100570), (710, 80456), (712, 80230), (890, 64184), (904, 63190), (1130, 50552), (1136, 50285), (1420, 40228), (1424, 40115), (1780, 32092), (1808, 31595), (2260, 25276), (2840, 20114), (3560, 16046), (4520, 12638), (5680, 10057), (6319, 9040), (7120, 8023)]