19857960

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{227}}^1$

素因数の和:259

約数の個数: 128

約数和(自身を含む): 67305600

約数和(自身を除く): 47447640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 227, 243, 270, 324, 360, 405, 454, 486, 540, 648, 681, 729, 810, 908, 972, 1080, 1135, 1215, 1362, 1458, 1620, 1816, 1944, 2043, 2187, 2270, 2430, 2724, 2916, 3240, 3405, 3645, 4086, 4374, 4540, 4860, 5448, 5832, 6129, 6810, 7290, 8172, 8748, 9080, 9720, 10215, 10935, 12258, 13620, 14580, 16344, 17496, 18387, 20430, 21870, 24516, 27240, 29160, 30645, 36774, 40860, 43740, 49032, 55161, 61290, 73548, 81720, 87480, 91935, 110322, 122580, 147096, 165483, 183870, 220644, 245160, 275805, 330966, 367740, 441288, 496449, 551610, 661932, 735480, 827415, 992898, 1103220, 1323864, 1654830, 1985796, 2206440, 2482245, 3309660, 3971592, 4964490, 6619320, 9928980, 19857960]

約数ペア:

[(1, 19857960), (2, 9928980), (3, 6619320), (4, 4964490), (5, 3971592), (6, 3309660), (8, 2482245), (9, 2206440), (10, 1985796), (12, 1654830), (15, 1323864), (18, 1103220), (20, 992898), (24, 827415), (27, 735480), (30, 661932), (36, 551610), (40, 496449), (45, 441288), (54, 367740), (60, 330966), (72, 275805), (81, 245160), (90, 220644), (108, 183870), (120, 165483), (135, 147096), (162, 122580), (180, 110322), (216, 91935), (227, 87480), (243, 81720), (270, 73548), (324, 61290), (360, 55161), (405, 49032), (454, 43740), (486, 40860), (540, 36774), (648, 30645), (681, 29160), (729, 27240), (810, 24516), (908, 21870), (972, 20430), (1080, 18387), (1135, 17496), (1215, 16344), (1362, 14580), (1458, 13620), (1620, 12258), (1816, 10935), (1944, 10215), (2043, 9720), (2187, 9080), (2270, 8748), (2430, 8172), (2724, 7290), (2916, 6810), (3240, 6129), (3405, 5832), (3645, 5448), (4086, 4860), (4374, 4540)]