20756400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^2\times {\mathrm{353}}^1$

素因数の和:388

約数の個数: 180

約数和(自身を含む): 77564232

約数和(自身を除く): 56807832

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 98, 100, 105, 112, 120, 140, 147, 150, 168, 175, 196, 200, 210, 240, 245, 280, 294, 300, 336, 350, 353, 392, 400, 420, 490, 525, 560, 588, 600, 700, 706, 735, 784, 840, 980, 1050, 1059, 1176, 1200, 1225, 1400, 1412, 1470, 1680, 1765, 1960, 2100, 2118, 2352, 2450, 2471, 2800, 2824, 2940, 3530, 3675, 3920, 4200, 4236, 4900, 4942, 5295, 5648, 5880, 7060, 7350, 7413, 8400, 8472, 8825, 9800, 9884, 10590, 11760, 12355, 14120, 14700, 14826, 16944, 17297, 17650, 19600, 19768, 21180, 24710, 26475, 28240, 29400, 29652, 34594, 35300, 37065, 39536, 42360, 49420, 51891, 52950, 58800, 59304, 61775, 69188, 70600, 74130, 84720, 86485, 98840, 103782, 105900, 118608, 123550, 138376, 141200, 148260, 172970, 185325, 197680, 207564, 211800, 247100, 259455, 276752, 296520, 345940, 370650, 415128, 423600, 432425, 494200, 518910, 593040, 691880, 741300, 830256, 864850, 988400, 1037820, 1297275, 1383760, 1482600, 1729700, 2075640, 2594550, 2965200, 3459400, 4151280, 5189100, 6918800, 10378200, 20756400]

約数ペア:

[(1, 20756400), (2, 10378200), (3, 6918800), (4, 5189100), (5, 4151280), (6, 3459400), (7, 2965200), (8, 2594550), (10, 2075640), (12, 1729700), (14, 1482600), (15, 1383760), (16, 1297275), (20, 1037820), (21, 988400), (24, 864850), (25, 830256), (28, 741300), (30, 691880), (35, 593040), (40, 518910), (42, 494200), (48, 432425), (49, 423600), (50, 415128), (56, 370650), (60, 345940), (70, 296520), (75, 276752), (80, 259455), (84, 247100), (98, 211800), (100, 207564), (105, 197680), (112, 185325), (120, 172970), (140, 148260), (147, 141200), (150, 138376), (168, 123550), (175, 118608), (196, 105900), (200, 103782), (210, 98840), (240, 86485), (245, 84720), (280, 74130), (294, 70600), (300, 69188), (336, 61775), (350, 59304), (353, 58800), (392, 52950), (400, 51891), (420, 49420), (490, 42360), (525, 39536), (560, 37065), (588, 35300), (600, 34594), (700, 29652), (706, 29400), (735, 28240), (784, 26475), (840, 24710), (980, 21180), (1050, 19768), (1059, 19600), (1176, 17650), (1200, 17297), (1225, 16944), (1400, 14826), (1412, 14700), (1470, 14120), (1680, 12355), (1765, 11760), (1960, 10590), (2100, 9884), (2118, 9800), (2352, 8825), (2450, 8472), (2471, 8400), (2800, 7413), (2824, 7350), (2940, 7060), (3530, 5880), (3675, 5648), (3920, 5295), (4200, 4942), (4236, 4900)]