78861780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23059}}^1$

素因数の和:23093

約数の個数: 72

約数和(自身を含む): 251815200

約数和(自身を除く): 172953420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23059, 46118, 69177, 92236, 115295, 138354, 207531, 230590, 276708, 345885, 415062, 438121, 461180, 691770, 830124, 876242, 1037655, 1314363, 1383540, 1752484, 2075310, 2190605, 2628726, 3943089, 4150620, 4381210, 5257452, 6571815, 7886178, 8762420, 13143630, 15772356, 19715445, 26287260, 39430890, 78861780]

約数ペア:

[(1, 78861780), (2, 39430890), (3, 26287260), (4, 19715445), (5, 15772356), (6, 13143630), (9, 8762420), (10, 7886178), (12, 6571815), (15, 5257452), (18, 4381210), (19, 4150620), (20, 3943089), (30, 2628726), (36, 2190605), (38, 2075310), (45, 1752484), (57, 1383540), (60, 1314363), (76, 1037655), (90, 876242), (95, 830124), (114, 691770), (171, 461180), (180, 438121), (190, 415062), (228, 345885), (285, 276708), (342, 230590), (380, 207531), (570, 138354), (684, 115295), (855, 92236), (1140, 69177), (1710, 46118), (3420, 23059)]