257643720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1249}}^1$

素因数の和:1460

約数の個数: 128

約数和(自身を含む): 864000000

約数和(自身を除く): 606356280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 191, 216, 270, 360, 382, 540, 573, 764, 955, 1080, 1146, 1249, 1528, 1719, 1910, 2292, 2498, 2865, 3438, 3747, 3820, 4584, 4996, 5157, 5730, 6245, 6876, 7494, 7640, 8595, 9992, 10314, 11241, 11460, 12490, 13752, 14988, 17190, 18735, 20628, 22482, 22920, 24980, 25785, 29976, 33723, 34380, 37470, 41256, 44964, 49960, 51570, 56205, 67446, 68760, 74940, 89928, 103140, 112410, 134892, 149880, 168615, 206280, 224820, 238559, 269784, 337230, 449640, 477118, 674460, 715677, 954236, 1192795, 1348920, 1431354, 1908472, 2147031, 2385590, 2862708, 3578385, 4294062, 4771180, 5725416, 6441093, 7156770, 8588124, 9542360, 10735155, 12882186, 14313540, 17176248, 21470310, 25764372, 28627080, 32205465, 42940620, 51528744, 64410930, 85881240, 128821860, 257643720]

約数ペア:

[(1, 257643720), (2, 128821860), (3, 85881240), (4, 64410930), (5, 51528744), (6, 42940620), (8, 32205465), (9, 28627080), (10, 25764372), (12, 21470310), (15, 17176248), (18, 14313540), (20, 12882186), (24, 10735155), (27, 9542360), (30, 8588124), (36, 7156770), (40, 6441093), (45, 5725416), (54, 4771180), (60, 4294062), (72, 3578385), (90, 2862708), (108, 2385590), (120, 2147031), (135, 1908472), (180, 1431354), (191, 1348920), (216, 1192795), (270, 954236), (360, 715677), (382, 674460), (540, 477118), (573, 449640), (764, 337230), (955, 269784), (1080, 238559), (1146, 224820), (1249, 206280), (1528, 168615), (1719, 149880), (1910, 134892), (2292, 112410), (2498, 103140), (2865, 89928), (3438, 74940), (3747, 68760), (3820, 67446), (4584, 56205), (4996, 51570), (5157, 49960), (5730, 44964), (6245, 41256), (6876, 37470), (7494, 34380), (7640, 33723), (8595, 29976), (9992, 25785), (10314, 24980), (11241, 22920), (11460, 22482), (12490, 20628), (13752, 18735), (14988, 17190)]