138990800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{26729}}^1$

素因数の和:26760

約数の個数: 60

約数和(自身を含む): 359625420

約数和(自身を除く): 220634620

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 26729, 53458, 106916, 133645, 213832, 267290, 347477, 427664, 534580, 668225, 694954, 1069160, 1336450, 1389908, 1737385, 2138320, 2672900, 2779816, 3474770, 5345800, 5559632, 6949540, 8686925, 10691600, 13899080, 17373850, 27798160, 34747700, 69495400, 138990800]

約数ペア:

[(1, 138990800), (2, 69495400), (4, 34747700), (5, 27798160), (8, 17373850), (10, 13899080), (13, 10691600), (16, 8686925), (20, 6949540), (25, 5559632), (26, 5345800), (40, 3474770), (50, 2779816), (52, 2672900), (65, 2138320), (80, 1737385), (100, 1389908), (104, 1336450), (130, 1069160), (200, 694954), (208, 668225), (260, 534580), (325, 427664), (400, 347477), (520, 267290), (650, 213832), (1040, 133645), (1300, 106916), (2600, 53458), (5200, 26729)]