289559780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 657296640

約数和(自身を除く): 367736860

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 103, 116, 131, 145, 148, 185, 206, 262, 290, 370, 412, 515, 524, 580, 655, 740, 1030, 1073, 1310, 2060, 2146, 2620, 2987, 3799, 3811, 4292, 4847, 5365, 5974, 7598, 7622, 9694, 10730, 11948, 13493, 14935, 15196, 15244, 18995, 19055, 19388, 21460, 24235, 26986, 29870, 37990, 38110, 48470, 53972, 59740, 67465, 75980, 76220, 96940, 110519, 134930, 140563, 221038, 269860, 281126, 391297, 442076, 499241, 552595, 562252, 702815, 782594, 998482, 1105190, 1405630, 1565188, 1956485, 1996964, 2210380, 2496205, 2811260, 3912970, 4992410, 7825940, 9984820, 14477989, 28955978, 57911956, 72389945, 144779890, 289559780]

約数ペア:

[(1, 289559780), (2, 144779890), (4, 72389945), (5, 57911956), (10, 28955978), (20, 14477989), (29, 9984820), (37, 7825940), (58, 4992410), (74, 3912970), (103, 2811260), (116, 2496205), (131, 2210380), (145, 1996964), (148, 1956485), (185, 1565188), (206, 1405630), (262, 1105190), (290, 998482), (370, 782594), (412, 702815), (515, 562252), (524, 552595), (580, 499241), (655, 442076), (740, 391297), (1030, 281126), (1073, 269860), (1310, 221038), (2060, 140563), (2146, 134930), (2620, 110519), (2987, 96940), (3799, 76220), (3811, 75980), (4292, 67465), (4847, 59740), (5365, 53972), (5974, 48470), (7598, 38110), (7622, 37990), (9694, 29870), (10730, 26986), (11948, 24235), (13493, 21460), (14935, 19388), (15196, 19055), (15244, 18995)]