212581530

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:981

約数の個数: 128

約数和(自身を含む): 653391360

約数和(自身を除く): 440809830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 137, 189, 210, 270, 274, 315, 378, 411, 630, 685, 821, 822, 945, 959, 1233, 1370, 1642, 1890, 1918, 2055, 2463, 2466, 2877, 3699, 4105, 4110, 4795, 4926, 5747, 5754, 6165, 7389, 7398, 8210, 8631, 9590, 11494, 12315, 12330, 14385, 14778, 17241, 17262, 18495, 22167, 24630, 25893, 28735, 28770, 34482, 36945, 36990, 43155, 44334, 51723, 51786, 57470, 73890, 86205, 86310, 103446, 110835, 112477, 129465, 155169, 172410, 221670, 224954, 258615, 258930, 310338, 337431, 517230, 562385, 674862, 775845, 787339, 1012293, 1124770, 1551690, 1574678, 1687155, 2024586, 2362017, 3036879, 3374310, 3936695, 4724034, 5061465, 6073758, 7086051, 7873390, 10122930, 11810085, 14172102, 15184395, 21258153, 23620170, 30368790, 35430255, 42516306, 70860510, 106290765, 212581530]

約数ペア:

[(1, 212581530), (2, 106290765), (3, 70860510), (5, 42516306), (6, 35430255), (7, 30368790), (9, 23620170), (10, 21258153), (14, 15184395), (15, 14172102), (18, 11810085), (21, 10122930), (27, 7873390), (30, 7086051), (35, 6073758), (42, 5061465), (45, 4724034), (54, 3936695), (63, 3374310), (70, 3036879), (90, 2362017), (105, 2024586), (126, 1687155), (135, 1574678), (137, 1551690), (189, 1124770), (210, 1012293), (270, 787339), (274, 775845), (315, 674862), (378, 562385), (411, 517230), (630, 337431), (685, 310338), (821, 258930), (822, 258615), (945, 224954), (959, 221670), (1233, 172410), (1370, 155169), (1642, 129465), (1890, 112477), (1918, 110835), (2055, 103446), (2463, 86310), (2466, 86205), (2877, 73890), (3699, 57470), (4105, 51786), (4110, 51723), (4795, 44334), (4926, 43155), (5747, 36990), (5754, 36945), (6165, 34482), (7389, 28770), (7398, 28735), (8210, 25893), (8631, 24630), (9590, 22167), (11494, 18495), (12315, 17262), (12330, 17241), (14385, 14778)]