25917080

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1889}}^1$

素因数の和:1921

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 42122920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1889, 1960, 2744, 3430, 3778, 6860, 7556, 9445, 13223, 13720, 15112, 18890, 26446, 37780, 52892, 66115, 75560, 92561, 105784, 132230, 185122, 264460, 370244, 462805, 528920, 647927, 740488, 925610, 1295854, 1851220, 2591708, 3239635, 3702440, 5183416, 6479270, 12958540, 25917080]

約数ペア:

[(1, 25917080), (2, 12958540), (4, 6479270), (5, 5183416), (7, 3702440), (8, 3239635), (10, 2591708), (14, 1851220), (20, 1295854), (28, 925610), (35, 740488), (40, 647927), (49, 528920), (56, 462805), (70, 370244), (98, 264460), (140, 185122), (196, 132230), (245, 105784), (280, 92561), (343, 75560), (392, 66115), (490, 52892), (686, 37780), (980, 26446), (1372, 18890), (1715, 15112), (1889, 13720), (1960, 13223), (2744, 9445), (3430, 7556), (3778, 6860)]