20446155

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 18952245

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 59, 85, 135, 151, 153, 177, 255, 295, 453, 459, 531, 755, 765, 885, 1003, 1359, 1593, 2265, 2295, 2567, 2655, 3009, 4077, 5015, 6795, 7701, 7965, 8909, 9027, 12835, 15045, 20385, 23103, 26727, 27081, 38505, 44545, 45135, 69309, 80181, 115515, 133635, 135405, 151453, 240543, 346545, 400905, 454359, 757265, 1202715, 1363077, 2271795, 4089231, 6815385, 20446155]

約数ペア:

[(1, 20446155), (3, 6815385), (5, 4089231), (9, 2271795), (15, 1363077), (17, 1202715), (27, 757265), (45, 454359), (51, 400905), (59, 346545), (85, 240543), (135, 151453), (151, 135405), (153, 133635), (177, 115515), (255, 80181), (295, 69309), (453, 45135), (459, 44545), (531, 38505), (755, 27081), (765, 26727), (885, 23103), (1003, 20385), (1359, 15045), (1593, 12835), (2265, 9027), (2295, 8909), (2567, 7965), (2655, 7701), (3009, 6795), (4077, 5015)]