138581800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 144

約数和(自身を含む): 381672000

約数和(自身を除く): 243090200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 79, 98, 100, 140, 158, 175, 179, 196, 200, 245, 280, 316, 350, 358, 392, 395, 490, 553, 632, 700, 716, 790, 895, 980, 1106, 1225, 1253, 1400, 1432, 1580, 1790, 1960, 1975, 2212, 2450, 2506, 2765, 3160, 3580, 3871, 3950, 4424, 4475, 4900, 5012, 5530, 6265, 7160, 7742, 7900, 8771, 8950, 9800, 10024, 11060, 12530, 13825, 14141, 15484, 15800, 17542, 17900, 19355, 22120, 25060, 27650, 28282, 30968, 31325, 35084, 35800, 38710, 43855, 50120, 55300, 56564, 62650, 70168, 70705, 77420, 87710, 96775, 98987, 110600, 113128, 125300, 141410, 154840, 175420, 193550, 197974, 219275, 250600, 282820, 350840, 353525, 387100, 395948, 438550, 494935, 565640, 692909, 707050, 774200, 791896, 877100, 989870, 1385818, 1414100, 1754200, 1979740, 2474675, 2771636, 2828200, 3464545, 3959480, 4949350, 5543272, 6929090, 9898700, 13858180, 17322725, 19797400, 27716360, 34645450, 69290900, 138581800]

約数ペア:

[(1, 138581800), (2, 69290900), (4, 34645450), (5, 27716360), (7, 19797400), (8, 17322725), (10, 13858180), (14, 9898700), (20, 6929090), (25, 5543272), (28, 4949350), (35, 3959480), (40, 3464545), (49, 2828200), (50, 2771636), (56, 2474675), (70, 1979740), (79, 1754200), (98, 1414100), (100, 1385818), (140, 989870), (158, 877100), (175, 791896), (179, 774200), (196, 707050), (200, 692909), (245, 565640), (280, 494935), (316, 438550), (350, 395948), (358, 387100), (392, 353525), (395, 350840), (490, 282820), (553, 250600), (632, 219275), (700, 197974), (716, 193550), (790, 175420), (895, 154840), (980, 141410), (1106, 125300), (1225, 113128), (1253, 110600), (1400, 98987), (1432, 96775), (1580, 87710), (1790, 77420), (1960, 70705), (1975, 70168), (2212, 62650), (2450, 56564), (2506, 55300), (2765, 50120), (3160, 43855), (3580, 38710), (3871, 35800), (3950, 35084), (4424, 31325), (4475, 30968), (4900, 28282), (5012, 27650), (5530, 25060), (6265, 22120), (7160, 19355), (7742, 17900), (7900, 17542), (8771, 15800), (8950, 15484), (9800, 14141), (10024, 13825), (11060, 12530)]