28954640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2531}}^1$

素因数の和:2568

約数の個数: 80

約数和(自身を含む): 79119936

約数和(自身を除く): 50165296

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2531, 2860, 5062, 5720, 10124, 11440, 12655, 20248, 25310, 27841, 32903, 40496, 50620, 55682, 65806, 101240, 111364, 131612, 139205, 164515, 202480, 222728, 263224, 278410, 329030, 361933, 445456, 526448, 556820, 658060, 723866, 1113640, 1316120, 1447732, 1809665, 2227280, 2632240, 2895464, 3619330, 5790928, 7238660, 14477320, 28954640]

約数ペア:

[(1, 28954640), (2, 14477320), (4, 7238660), (5, 5790928), (8, 3619330), (10, 2895464), (11, 2632240), (13, 2227280), (16, 1809665), (20, 1447732), (22, 1316120), (26, 1113640), (40, 723866), (44, 658060), (52, 556820), (55, 526448), (65, 445456), (80, 361933), (88, 329030), (104, 278410), (110, 263224), (130, 222728), (143, 202480), (176, 164515), (208, 139205), (220, 131612), (260, 111364), (286, 101240), (440, 65806), (520, 55682), (572, 50620), (715, 40496), (880, 32903), (1040, 27841), (1144, 25310), (1430, 20248), (2288, 12655), (2531, 11440), (2860, 10124), (5062, 5720)]