81120280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{929}}^1$

素因数の和:1036

約数の個数: 64

約数和(自身を含む): 190836000

約数和(自身を除く): 109715720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 59, 74, 118, 148, 185, 236, 295, 296, 370, 472, 590, 740, 929, 1180, 1480, 1858, 2183, 2360, 3716, 4366, 4645, 7432, 8732, 9290, 10915, 17464, 18580, 21830, 34373, 37160, 43660, 54811, 68746, 87320, 109622, 137492, 171865, 219244, 274055, 274984, 343730, 438488, 548110, 687460, 1096220, 1374920, 2028007, 2192440, 4056014, 8112028, 10140035, 16224056, 20280070, 40560140, 81120280]

約数ペア:

[(1, 81120280), (2, 40560140), (4, 20280070), (5, 16224056), (8, 10140035), (10, 8112028), (20, 4056014), (37, 2192440), (40, 2028007), (59, 1374920), (74, 1096220), (118, 687460), (148, 548110), (185, 438488), (236, 343730), (295, 274984), (296, 274055), (370, 219244), (472, 171865), (590, 137492), (740, 109622), (929, 87320), (1180, 68746), (1480, 54811), (1858, 43660), (2183, 37160), (2360, 34373), (3716, 21830), (4366, 18580), (4645, 17464), (7432, 10915), (8732, 9290)]