80121780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15349}}^1$

素因数の和:15393

約数の個数: 72

約数和(自身を含む): 251433000

約数和(自身を除く): 171311220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 15349, 30698, 46047, 61396, 76745, 92094, 138141, 153490, 184188, 230235, 276282, 306980, 445121, 460470, 552564, 690705, 890242, 920940, 1335363, 1381410, 1780484, 2225605, 2670726, 2762820, 4006089, 4451210, 5341452, 6676815, 8012178, 8902420, 13353630, 16024356, 20030445, 26707260, 40060890, 80121780]

約数ペア:

[(1, 80121780), (2, 40060890), (3, 26707260), (4, 20030445), (5, 16024356), (6, 13353630), (9, 8902420), (10, 8012178), (12, 6676815), (15, 5341452), (18, 4451210), (20, 4006089), (29, 2762820), (30, 2670726), (36, 2225605), (45, 1780484), (58, 1381410), (60, 1335363), (87, 920940), (90, 890242), (116, 690705), (145, 552564), (174, 460470), (180, 445121), (261, 306980), (290, 276282), (348, 230235), (435, 184188), (522, 153490), (580, 138141), (870, 92094), (1044, 76745), (1305, 61396), (1740, 46047), (2610, 30698), (5220, 15349)]