209181700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 566185984

約数和(自身を除く): 357004284

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 127, 130, 140, 175, 181, 182, 254, 260, 325, 350, 362, 364, 455, 508, 635, 650, 700, 724, 889, 905, 910, 1267, 1270, 1300, 1651, 1778, 1810, 1820, 2275, 2353, 2534, 2540, 3175, 3302, 3556, 3620, 4445, 4525, 4550, 4706, 5068, 6335, 6350, 6604, 8255, 8890, 9050, 9100, 9412, 11557, 11765, 12670, 12700, 16471, 16510, 17780, 18100, 22225, 22987, 23114, 23530, 25340, 31675, 32942, 33020, 41275, 44450, 45974, 46228, 47060, 57785, 58825, 63350, 65884, 82355, 82550, 88900, 91948, 114935, 115570, 117650, 126700, 160909, 164710, 165100, 229870, 231140, 235300, 288925, 298831, 321818, 329420, 411775, 459740, 574675, 577850, 597662, 643636, 804545, 823550, 1149350, 1155700, 1195324, 1494155, 1609090, 1647100, 2091817, 2298700, 2988310, 3218180, 4022725, 4183634, 5976620, 7470775, 8045450, 8367268, 10459085, 14941550, 16090900, 20918170, 29883100, 41836340, 52295425, 104590850, 209181700]

約数ペア:

[(1, 209181700), (2, 104590850), (4, 52295425), (5, 41836340), (7, 29883100), (10, 20918170), (13, 16090900), (14, 14941550), (20, 10459085), (25, 8367268), (26, 8045450), (28, 7470775), (35, 5976620), (50, 4183634), (52, 4022725), (65, 3218180), (70, 2988310), (91, 2298700), (100, 2091817), (127, 1647100), (130, 1609090), (140, 1494155), (175, 1195324), (181, 1155700), (182, 1149350), (254, 823550), (260, 804545), (325, 643636), (350, 597662), (362, 577850), (364, 574675), (455, 459740), (508, 411775), (635, 329420), (650, 321818), (700, 298831), (724, 288925), (889, 235300), (905, 231140), (910, 229870), (1267, 165100), (1270, 164710), (1300, 160909), (1651, 126700), (1778, 117650), (1810, 115570), (1820, 114935), (2275, 91948), (2353, 88900), (2534, 82550), (2540, 82355), (3175, 65884), (3302, 63350), (3556, 58825), (3620, 57785), (4445, 47060), (4525, 46228), (4550, 45974), (4706, 44450), (5068, 41275), (6335, 33020), (6350, 32942), (6604, 31675), (8255, 25340), (8890, 23530), (9050, 23114), (9100, 22987), (9412, 22225), (11557, 18100), (11765, 17780), (12670, 16510), (12700, 16471)]