81951040

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3607}}^1$

素因数の和:3695

約数の個数: 56

約数和(自身を含む): 197949312

約数和(自身を除く): 115998272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 3607, 4544, 5680, 7214, 11360, 14428, 18035, 22720, 28856, 36070, 57712, 72140, 115424, 144280, 230848, 256097, 288560, 512194, 577120, 1024388, 1154240, 1280485, 2048776, 2560970, 4097552, 5121940, 8195104, 10243880, 16390208, 20487760, 40975520, 81951040]

約数ペア:

[(1, 81951040), (2, 40975520), (4, 20487760), (5, 16390208), (8, 10243880), (10, 8195104), (16, 5121940), (20, 4097552), (32, 2560970), (40, 2048776), (64, 1280485), (71, 1154240), (80, 1024388), (142, 577120), (160, 512194), (284, 288560), (320, 256097), (355, 230848), (568, 144280), (710, 115424), (1136, 72140), (1420, 57712), (2272, 36070), (2840, 28856), (3607, 22720), (4544, 18035), (5680, 14428), (7214, 11360)]