20930260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 27050540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1019, 1027, 1580, 2038, 2054, 4076, 4108, 5095, 5135, 10190, 10270, 13247, 20380, 20540, 26494, 52988, 66235, 80501, 132470, 161002, 264940, 322004, 402505, 805010, 1046513, 1610020, 2093026, 4186052, 5232565, 10465130, 20930260]

約数ペア:

[(1, 20930260), (2, 10465130), (4, 5232565), (5, 4186052), (10, 2093026), (13, 1610020), (20, 1046513), (26, 805010), (52, 402505), (65, 322004), (79, 264940), (130, 161002), (158, 132470), (260, 80501), (316, 66235), (395, 52988), (790, 26494), (1019, 20540), (1027, 20380), (1580, 13247), (2038, 10270), (2054, 10190), (4076, 5135), (4108, 5095)]