78506260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18089}}^1$

素因数の和:18136

約数の個数: 48

約数和(自身を含む): 194503680

約数和(自身を除く): 115997420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18089, 36178, 72356, 90445, 126623, 180890, 253246, 361780, 506492, 560759, 633115, 1121518, 1266230, 2243036, 2532460, 2803795, 3925313, 5607590, 7850626, 11215180, 15701252, 19626565, 39253130, 78506260]

約数ペア:

[(1, 78506260), (2, 39253130), (4, 19626565), (5, 15701252), (7, 11215180), (10, 7850626), (14, 5607590), (20, 3925313), (28, 2803795), (31, 2532460), (35, 2243036), (62, 1266230), (70, 1121518), (124, 633115), (140, 560759), (155, 506492), (217, 361780), (310, 253246), (434, 180890), (620, 126623), (868, 90445), (1085, 72356), (2170, 36178), (4340, 18089)]