81648420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6271}}^1$

素因数の和:6321

約数の個数: 96

約数和(自身を含む): 269746176

約数和(自身を除く): 188097756

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6271, 6510, 12542, 13020, 18813, 25084, 31355, 37626, 43897, 62710, 75252, 87794, 94065, 125420, 131691, 175588, 188130, 194401, 219485, 263382, 376260, 388802, 438970, 526764, 583203, 658455, 777604, 877940, 972005, 1166406, 1316910, 1360807, 1944010, 2332812, 2633820, 2721614, 2916015, 3888020, 4082421, 5443228, 5832030, 6804035, 8164842, 11664060, 13608070, 16329684, 20412105, 27216140, 40824210, 81648420]

約数ペア:

[(1, 81648420), (2, 40824210), (3, 27216140), (4, 20412105), (5, 16329684), (6, 13608070), (7, 11664060), (10, 8164842), (12, 6804035), (14, 5832030), (15, 5443228), (20, 4082421), (21, 3888020), (28, 2916015), (30, 2721614), (31, 2633820), (35, 2332812), (42, 1944010), (60, 1360807), (62, 1316910), (70, 1166406), (84, 972005), (93, 877940), (105, 777604), (124, 658455), (140, 583203), (155, 526764), (186, 438970), (210, 388802), (217, 376260), (310, 263382), (372, 219485), (420, 194401), (434, 188130), (465, 175588), (620, 131691), (651, 125420), (868, 94065), (930, 87794), (1085, 75252), (1302, 62710), (1860, 43897), (2170, 37626), (2604, 31355), (3255, 25084), (4340, 18813), (6271, 13020), (6510, 12542)]