31206840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:501

約数の個数: 128

約数和(自身を含む): 108380160

約数和(自身を除く): 77173320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 97, 105, 120, 140, 168, 194, 210, 280, 291, 383, 388, 420, 485, 582, 679, 766, 776, 840, 970, 1149, 1164, 1358, 1455, 1532, 1915, 1940, 2037, 2298, 2328, 2681, 2716, 2910, 3064, 3395, 3830, 3880, 4074, 4596, 5362, 5432, 5745, 5820, 6790, 7660, 8043, 8148, 9192, 10185, 10724, 11490, 11640, 13405, 13580, 15320, 16086, 16296, 20370, 21448, 22980, 26810, 27160, 32172, 37151, 40215, 40740, 45960, 53620, 64344, 74302, 80430, 81480, 107240, 111453, 148604, 160860, 185755, 222906, 260057, 297208, 321720, 371510, 445812, 520114, 557265, 743020, 780171, 891624, 1040228, 1114530, 1300285, 1486040, 1560342, 2080456, 2229060, 2600570, 3120684, 3900855, 4458120, 5201140, 6241368, 7801710, 10402280, 15603420, 31206840]

約数ペア:

[(1, 31206840), (2, 15603420), (3, 10402280), (4, 7801710), (5, 6241368), (6, 5201140), (7, 4458120), (8, 3900855), (10, 3120684), (12, 2600570), (14, 2229060), (15, 2080456), (20, 1560342), (21, 1486040), (24, 1300285), (28, 1114530), (30, 1040228), (35, 891624), (40, 780171), (42, 743020), (56, 557265), (60, 520114), (70, 445812), (84, 371510), (97, 321720), (105, 297208), (120, 260057), (140, 222906), (168, 185755), (194, 160860), (210, 148604), (280, 111453), (291, 107240), (383, 81480), (388, 80430), (420, 74302), (485, 64344), (582, 53620), (679, 45960), (766, 40740), (776, 40215), (840, 37151), (970, 32172), (1149, 27160), (1164, 26810), (1358, 22980), (1455, 21448), (1532, 20370), (1915, 16296), (1940, 16086), (2037, 15320), (2298, 13580), (2328, 13405), (2681, 11640), (2716, 11490), (2910, 10724), (3064, 10185), (3395, 9192), (3830, 8148), (3880, 8043), (4074, 7660), (4596, 6790), (5362, 5820), (5432, 5745)]