205123880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{1693}}^1$

素因数の和:1950

約数の個数: 64

約数和(自身を含む): 499458960

約数和(自身を除く): 294335080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 233, 260, 466, 520, 932, 1165, 1693, 1864, 2330, 3029, 3386, 4660, 6058, 6772, 8465, 9320, 12116, 13544, 15145, 16930, 22009, 24232, 30290, 33860, 44018, 60580, 67720, 88036, 110045, 121160, 176072, 220090, 394469, 440180, 788938, 880360, 1577876, 1972345, 3155752, 3944690, 5128097, 7889380, 10256194, 15778760, 20512388, 25640485, 41024776, 51280970, 102561940, 205123880]

約数ペア:

[(1, 205123880), (2, 102561940), (4, 51280970), (5, 41024776), (8, 25640485), (10, 20512388), (13, 15778760), (20, 10256194), (26, 7889380), (40, 5128097), (52, 3944690), (65, 3155752), (104, 1972345), (130, 1577876), (233, 880360), (260, 788938), (466, 440180), (520, 394469), (932, 220090), (1165, 176072), (1693, 121160), (1864, 110045), (2330, 88036), (3029, 67720), (3386, 60580), (4660, 44018), (6058, 33860), (6772, 30290), (8465, 24232), (9320, 22009), (12116, 16930), (13544, 15145)]