20049180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:483

約数の個数: 96

約数和(自身を含む): 60614400

約数和(自身を除く): 40565220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 409, 430, 516, 570, 645, 817, 818, 860, 1140, 1227, 1290, 1634, 1636, 2045, 2451, 2454, 2580, 3268, 4085, 4090, 4902, 4908, 6135, 7771, 8170, 8180, 9804, 12255, 12270, 15542, 16340, 17587, 23313, 24510, 24540, 31084, 35174, 38855, 46626, 49020, 52761, 70348, 77710, 87935, 93252, 105522, 116565, 155420, 175870, 211044, 233130, 263805, 334153, 351740, 466260, 527610, 668306, 1002459, 1055220, 1336612, 1670765, 2004918, 3341530, 4009836, 5012295, 6683060, 10024590, 20049180]

約数ペア:

[(1, 20049180), (2, 10024590), (3, 6683060), (4, 5012295), (5, 4009836), (6, 3341530), (10, 2004918), (12, 1670765), (15, 1336612), (19, 1055220), (20, 1002459), (30, 668306), (38, 527610), (43, 466260), (57, 351740), (60, 334153), (76, 263805), (86, 233130), (95, 211044), (114, 175870), (129, 155420), (172, 116565), (190, 105522), (215, 93252), (228, 87935), (258, 77710), (285, 70348), (380, 52761), (409, 49020), (430, 46626), (516, 38855), (570, 35174), (645, 31084), (817, 24540), (818, 24510), (860, 23313), (1140, 17587), (1227, 16340), (1290, 15542), (1634, 12270), (1636, 12255), (2045, 9804), (2451, 8180), (2454, 8170), (2580, 7771), (3268, 6135), (4085, 4908), (4090, 4902)]