78857940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{523}}^1$

素因数の和:901

約数の個数: 96

約数和(自身を含む): 253532160

約数和(自身を除く): 174674220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 359, 420, 523, 718, 1046, 1077, 1436, 1569, 1795, 2092, 2154, 2513, 2615, 3138, 3590, 3661, 4308, 5026, 5230, 5385, 6276, 7180, 7322, 7539, 7845, 10052, 10460, 10770, 10983, 12565, 14644, 15078, 15690, 18305, 21540, 21966, 25130, 30156, 31380, 36610, 37695, 43932, 50260, 54915, 73220, 75390, 109830, 150780, 187757, 219660, 375514, 563271, 751028, 938785, 1126542, 1314299, 1877570, 2253084, 2628598, 2816355, 3755140, 3942897, 5257196, 5632710, 6571495, 7885794, 11265420, 13142990, 15771588, 19714485, 26285980, 39428970, 78857940]

約数ペア:

[(1, 78857940), (2, 39428970), (3, 26285980), (4, 19714485), (5, 15771588), (6, 13142990), (7, 11265420), (10, 7885794), (12, 6571495), (14, 5632710), (15, 5257196), (20, 3942897), (21, 3755140), (28, 2816355), (30, 2628598), (35, 2253084), (42, 1877570), (60, 1314299), (70, 1126542), (84, 938785), (105, 751028), (140, 563271), (210, 375514), (359, 219660), (420, 187757), (523, 150780), (718, 109830), (1046, 75390), (1077, 73220), (1436, 54915), (1569, 50260), (1795, 43932), (2092, 37695), (2154, 36610), (2513, 31380), (2615, 30156), (3138, 25130), (3590, 21966), (3661, 21540), (4308, 18305), (5026, 15690), (5230, 15078), (5385, 14644), (6276, 12565), (7180, 10983), (7322, 10770), (7539, 10460), (7845, 10052)]