25121320

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1831}}^1$

素因数の和:1863

約数の個数: 64

約数和(自身を含む): 65952000

約数和(自身を除く): 40830680

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, 1831, 1960, 2744, 3430, 3662, 6860, 7324, 9155, 12817, 13720, 14648, 18310, 25634, 36620, 51268, 64085, 73240, 89719, 102536, 128170, 179438, 256340, 358876, 448595, 512680, 628033, 717752, 897190, 1256066, 1794380, 2512132, 3140165, 3588760, 5024264, 6280330, 12560660, 25121320]

約数ペア:

[(1, 25121320), (2, 12560660), (4, 6280330), (5, 5024264), (7, 3588760), (8, 3140165), (10, 2512132), (14, 1794380), (20, 1256066), (28, 897190), (35, 717752), (40, 628033), (49, 512680), (56, 448595), (70, 358876), (98, 256340), (140, 179438), (196, 128170), (245, 102536), (280, 89719), (343, 73240), (392, 64085), (490, 51268), (686, 36620), (980, 25634), (1372, 18310), (1715, 14648), (1831, 13720), (1960, 12817), (2744, 9155), (3430, 7324), (3662, 6860)]