38866815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 76090560

約数和(自身を除く): 37223745

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 79, 87, 117, 145, 195, 237, 261, 377, 395, 435, 585, 711, 841, 1027, 1131, 1185, 1305, 1885, 2291, 2523, 3081, 3393, 3555, 4205, 5135, 5655, 6873, 7569, 9243, 10933, 11455, 12615, 15405, 16965, 20619, 29783, 32799, 34365, 37845, 46215, 54665, 66439, 89349, 98397, 103095, 148915, 163995, 199317, 268047, 332195, 446745, 491985, 597951, 863707, 996585, 1340235, 2591121, 2989755, 4318535, 7773363, 12955605, 38866815]

約数ペア:

[(1, 38866815), (3, 12955605), (5, 7773363), (9, 4318535), (13, 2989755), (15, 2591121), (29, 1340235), (39, 996585), (45, 863707), (65, 597951), (79, 491985), (87, 446745), (117, 332195), (145, 268047), (195, 199317), (237, 163995), (261, 148915), (377, 103095), (395, 98397), (435, 89349), (585, 66439), (711, 54665), (841, 46215), (1027, 37845), (1131, 34365), (1185, 32799), (1305, 29783), (1885, 20619), (2291, 16965), (2523, 15405), (3081, 12615), (3393, 11455), (3555, 10933), (4205, 9243), (5135, 7569), (5655, 6873)]