47880280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{631}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 123770880

約数和(自身を除く): 75890600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 542, 631, 1084, 1262, 1355, 1897, 2168, 2524, 2710, 3155, 3794, 4417, 5048, 5420, 6310, 7588, 8834, 9485, 10840, 12620, 15176, 17668, 18970, 22085, 25240, 35336, 37940, 44170, 75880, 88340, 171001, 176680, 342002, 684004, 855005, 1197007, 1368008, 1710010, 2394014, 3420020, 4788028, 5985035, 6840040, 9576056, 11970070, 23940140, 47880280]

約数ペア:

[(1, 47880280), (2, 23940140), (4, 11970070), (5, 9576056), (7, 6840040), (8, 5985035), (10, 4788028), (14, 3420020), (20, 2394014), (28, 1710010), (35, 1368008), (40, 1197007), (56, 855005), (70, 684004), (140, 342002), (271, 176680), (280, 171001), (542, 88340), (631, 75880), (1084, 44170), (1262, 37940), (1355, 35336), (1897, 25240), (2168, 22085), (2524, 18970), (2710, 17668), (3155, 15176), (3794, 12620), (4417, 10840), (5048, 9485), (5420, 8834), (6310, 7588)]