128569090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 261983232

約数和(自身を除く): 133414142

約数列:

[1, 2, 5, 10, 13, 26, 31, 61, 62, 65, 122, 130, 155, 305, 310, 403, 523, 610, 793, 806, 1046, 1586, 1891, 2015, 2615, 3782, 3965, 4030, 5230, 6799, 7930, 9455, 13598, 16213, 18910, 24583, 31903, 32426, 33995, 49166, 63806, 67990, 81065, 122915, 159515, 162130, 210769, 245830, 319030, 414739, 421538, 829478, 988993, 1053845, 1977986, 2073695, 2107690, 4147390, 4944965, 9889930, 12856909, 25713818, 64284545, 128569090]

約数ペア:

[(1, 128569090), (2, 64284545), (5, 25713818), (10, 12856909), (13, 9889930), (26, 4944965), (31, 4147390), (61, 2107690), (62, 2073695), (65, 1977986), (122, 1053845), (130, 988993), (155, 829478), (305, 421538), (310, 414739), (403, 319030), (523, 245830), (610, 210769), (793, 162130), (806, 159515), (1046, 122915), (1586, 81065), (1891, 67990), (2015, 63806), (2615, 49166), (3782, 33995), (3965, 32426), (4030, 31903), (5230, 24583), (6799, 18910), (7930, 16213), (9455, 13598)]