28015520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13469}}^1$

素因数の和:13497

約数の個数: 48

約数和(自身を含む): 71283240

約数和(自身を除く): 43267720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13469, 26938, 53876, 67345, 107752, 134690, 175097, 215504, 269380, 350194, 431008, 538760, 700388, 875485, 1077520, 1400776, 1750970, 2155040, 2801552, 3501940, 5603104, 7003880, 14007760, 28015520]

約数ペア:

[(1, 28015520), (2, 14007760), (4, 7003880), (5, 5603104), (8, 3501940), (10, 2801552), (13, 2155040), (16, 1750970), (20, 1400776), (26, 1077520), (32, 875485), (40, 700388), (52, 538760), (65, 431008), (80, 350194), (104, 269380), (130, 215504), (160, 175097), (208, 134690), (260, 107752), (416, 67345), (520, 53876), (1040, 26938), (2080, 13469)]