220139955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1373}}^1$

素因数の和:1900

約数の個数: 48

約数和(自身を含む): 437261760

約数和(自身を除く): 217121805

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 509, 1373, 1527, 2545, 3563, 4119, 4581, 6865, 7635, 9611, 10689, 12357, 17815, 20595, 22905, 28833, 32067, 48055, 53445, 61785, 86499, 144165, 160335, 432495, 698857, 2096571, 3494285, 4891999, 6289713, 10482855, 14675997, 24459995, 31448565, 44027991, 73379985, 220139955]

約数ペア:

[(1, 220139955), (3, 73379985), (5, 44027991), (7, 31448565), (9, 24459995), (15, 14675997), (21, 10482855), (35, 6289713), (45, 4891999), (63, 3494285), (105, 2096571), (315, 698857), (509, 432495), (1373, 160335), (1527, 144165), (2545, 86499), (3563, 61785), (4119, 53445), (4581, 48055), (6865, 32067), (7635, 28833), (9611, 22905), (10689, 20595), (12357, 17815)]