25625320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1289}}^1$

素因数の和:1378

約数の個数: 64

約数和(自身を含む): 66873600

約数和(自身を除く): 41248280

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, 1289, 1420, 1988, 2485, 2578, 2840, 3976, 4970, 5156, 6445, 9023, 9940, 10312, 12890, 18046, 19880, 25780, 36092, 45115, 51560, 72184, 90230, 91519, 180460, 183038, 360920, 366076, 457595, 640633, 732152, 915190, 1281266, 1830380, 2562532, 3203165, 3660760, 5125064, 6406330, 12812660, 25625320]

約数ペア:

[(1, 25625320), (2, 12812660), (4, 6406330), (5, 5125064), (7, 3660760), (8, 3203165), (10, 2562532), (14, 1830380), (20, 1281266), (28, 915190), (35, 732152), (40, 640633), (56, 457595), (70, 366076), (71, 360920), (140, 183038), (142, 180460), (280, 91519), (284, 90230), (355, 72184), (497, 51560), (568, 45115), (710, 36092), (994, 25780), (1289, 19880), (1420, 18046), (1988, 12890), (2485, 10312), (2578, 9940), (2840, 9023), (3976, 6445), (4970, 5156)]