257867820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{68219}}^1$

素因数の和:68244

約数の個数: 96

約数和(自身を含む): 916876800

約数和(自身を除く): 659008980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 68219, 136438, 204657, 272876, 341095, 409314, 477533, 613971, 682190, 818628, 955066, 1023285, 1227942, 1364380, 1432599, 1841913, 1910132, 2046570, 2387665, 2455884, 2865198, 3069855, 3683826, 4093140, 4297797, 4775330, 5730396, 6139710, 7162995, 7367652, 8595594, 9209565, 9550660, 12279420, 12893391, 14325990, 17191188, 18419130, 21488985, 25786782, 28651980, 36838260, 42977970, 51573564, 64466955, 85955940, 128933910, 257867820]

約数ペア:

[(1, 257867820), (2, 128933910), (3, 85955940), (4, 64466955), (5, 51573564), (6, 42977970), (7, 36838260), (9, 28651980), (10, 25786782), (12, 21488985), (14, 18419130), (15, 17191188), (18, 14325990), (20, 12893391), (21, 12279420), (27, 9550660), (28, 9209565), (30, 8595594), (35, 7367652), (36, 7162995), (42, 6139710), (45, 5730396), (54, 4775330), (60, 4297797), (63, 4093140), (70, 3683826), (84, 3069855), (90, 2865198), (105, 2455884), (108, 2387665), (126, 2046570), (135, 1910132), (140, 1841913), (180, 1432599), (189, 1364380), (210, 1227942), (252, 1023285), (270, 955066), (315, 818628), (378, 682190), (420, 613971), (540, 477533), (630, 409314), (756, 341095), (945, 272876), (1260, 204657), (1890, 136438), (3780, 68219)]