78711640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5737}}^1$

素因数の和:5769

約数の個数: 64

約数和(自身を含む): 206568000

約数和(自身を除く): 127856360

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, 1960, 2744, 3430, 5737, 6860, 11474, 13720, 22948, 28685, 40159, 45896, 57370, 80318, 114740, 160636, 200795, 229480, 281113, 321272, 401590, 562226, 803180, 1124452, 1405565, 1606360, 1967791, 2248904, 2811130, 3935582, 5622260, 7871164, 9838955, 11244520, 15742328, 19677910, 39355820, 78711640]

約数ペア:

[(1, 78711640), (2, 39355820), (4, 19677910), (5, 15742328), (7, 11244520), (8, 9838955), (10, 7871164), (14, 5622260), (20, 3935582), (28, 2811130), (35, 2248904), (40, 1967791), (49, 1606360), (56, 1405565), (70, 1124452), (98, 803180), (140, 562226), (196, 401590), (245, 321272), (280, 281113), (343, 229480), (392, 200795), (490, 160636), (686, 114740), (980, 80318), (1372, 57370), (1715, 45896), (1960, 40159), (2744, 28685), (3430, 22948), (5737, 13720), (6860, 11474)]