85265320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4289}}^1$

素因数の和:4378

約数の個数: 64

約数和(自身を含む): 222393600

約数和(自身を除く): 137128280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4289, 4970, 8578, 9940, 17156, 19880, 21445, 30023, 34312, 42890, 60046, 85780, 120092, 150115, 171560, 240184, 300230, 304519, 600460, 609038, 1200920, 1218076, 1522595, 2131633, 2436152, 3045190, 4263266, 6090380, 8526532, 10658165, 12180760, 17053064, 21316330, 42632660, 85265320]

約数ペア:

[(1, 85265320), (2, 42632660), (4, 21316330), (5, 17053064), (7, 12180760), (8, 10658165), (10, 8526532), (14, 6090380), (20, 4263266), (28, 3045190), (35, 2436152), (40, 2131633), (56, 1522595), (70, 1218076), (71, 1200920), (140, 609038), (142, 600460), (280, 304519), (284, 300230), (355, 240184), (497, 171560), (568, 150115), (710, 120092), (994, 85780), (1420, 60046), (1988, 42890), (2485, 34312), (2840, 30023), (3976, 21445), (4289, 19880), (4970, 17156), (8578, 9940)]