280723898

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{81181}}^1$

素因数の和:81222

約数の個数: 32

約数和(自身を含む): 545543040

約数和(自身を除く): 264819142

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 81181, 162362, 568267, 1055353, 1136534, 1542439, 2110706, 3084878, 7387471, 10797073, 14774942, 20051707, 21594146, 40103414, 140361949, 280723898]

約数ペア:

[(1, 280723898), (2, 140361949), (7, 40103414), (13, 21594146), (14, 20051707), (19, 14774942), (26, 10797073), (38, 7387471), (91, 3084878), (133, 2110706), (182, 1542439), (247, 1136534), (266, 1055353), (494, 568267), (1729, 162362), (3458, 81181)]