77607880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8941}}^1$

素因数の和:8990

約数の個数: 64

約数和(自身を含む): 206023680

約数和(自身を除く): 128415800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 8941, 17882, 35764, 44705, 62587, 71528, 89410, 125174, 178820, 250348, 277171, 312935, 357640, 500696, 554342, 625870, 1108684, 1251740, 1385855, 1940197, 2217368, 2503480, 2771710, 3880394, 5543420, 7760788, 9700985, 11086840, 15521576, 19401970, 38803940, 77607880]

約数ペア:

[(1, 77607880), (2, 38803940), (4, 19401970), (5, 15521576), (7, 11086840), (8, 9700985), (10, 7760788), (14, 5543420), (20, 3880394), (28, 2771710), (31, 2503480), (35, 2217368), (40, 1940197), (56, 1385855), (62, 1251740), (70, 1108684), (124, 625870), (140, 554342), (155, 500696), (217, 357640), (248, 312935), (280, 277171), (310, 250348), (434, 178820), (620, 125174), (868, 89410), (1085, 71528), (1240, 62587), (1736, 44705), (2170, 35764), (4340, 17882), (8680, 8941)]