19145655

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 17246025

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 863, 1305, 1479, 2465, 2589, 4315, 4437, 7395, 7767, 12945, 14671, 22185, 25027, 38835, 44013, 73355, 75081, 125135, 132039, 220065, 225243, 375405, 425459, 660195, 1126215, 1276377, 2127295, 3829131, 6381885, 19145655]

約数ペア:

[(1, 19145655), (3, 6381885), (5, 3829131), (9, 2127295), (15, 1276377), (17, 1126215), (29, 660195), (45, 425459), (51, 375405), (85, 225243), (87, 220065), (145, 132039), (153, 125135), (255, 75081), (261, 73355), (435, 44013), (493, 38835), (765, 25027), (863, 22185), (1305, 14671), (1479, 12945), (2465, 7767), (2589, 7395), (4315, 4437)]