1989964480

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{709}}^1$

素因数の和:919

約数の個数: 168

約数和(自身を含む): 5550865200

約数和(自身を除く): 3560900720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 179, 196, 224, 245, 280, 320, 358, 392, 448, 490, 560, 709, 716, 784, 895, 980, 1120, 1253, 1418, 1432, 1568, 1790, 1960, 2240, 2506, 2836, 2864, 3136, 3545, 3580, 3920, 4963, 5012, 5672, 5728, 6265, 7090, 7160, 7840, 8771, 9926, 10024, 11344, 11456, 12530, 14180, 14320, 15680, 17542, 19852, 20048, 22688, 24815, 25060, 28360, 28640, 34741, 35084, 39704, 40096, 43855, 45376, 49630, 50120, 56720, 57280, 69482, 70168, 79408, 80192, 87710, 99260, 100240, 113440, 126911, 138964, 140336, 158816, 173705, 175420, 198520, 200480, 226880, 253822, 277928, 280672, 317632, 347410, 350840, 397040, 400960, 507644, 555856, 561344, 634555, 694820, 701680, 794080, 888377, 1015288, 1111712, 1269110, 1389640, 1403360, 1588160, 1776754, 2030576, 2223424, 2538220, 2779280, 2806720, 3553508, 4061152, 4441885, 5076440, 5558560, 6218639, 7107016, 8122304, 8883770, 10152880, 11117120, 12437278, 14214032, 17767540, 20305760, 24874556, 28428064, 31093195, 35535080, 40611520, 49749112, 56856128, 62186390, 71070160, 99498224, 124372780, 142140320, 198996448, 248745560, 284280640, 397992896, 497491120, 994982240, 1989964480]

約数ペア:

[(1, 1989964480), (2, 994982240), (4, 497491120), (5, 397992896), (7, 284280640), (8, 248745560), (10, 198996448), (14, 142140320), (16, 124372780), (20, 99498224), (28, 71070160), (32, 62186390), (35, 56856128), (40, 49749112), (49, 40611520), (56, 35535080), (64, 31093195), (70, 28428064), (80, 24874556), (98, 20305760), (112, 17767540), (140, 14214032), (160, 12437278), (179, 11117120), (196, 10152880), (224, 8883770), (245, 8122304), (280, 7107016), (320, 6218639), (358, 5558560), (392, 5076440), (448, 4441885), (490, 4061152), (560, 3553508), (709, 2806720), (716, 2779280), (784, 2538220), (895, 2223424), (980, 2030576), (1120, 1776754), (1253, 1588160), (1418, 1403360), (1432, 1389640), (1568, 1269110), (1790, 1111712), (1960, 1015288), (2240, 888377), (2506, 794080), (2836, 701680), (2864, 694820), (3136, 634555), (3545, 561344), (3580, 555856), (3920, 507644), (4963, 400960), (5012, 397040), (5672, 350840), (5728, 347410), (6265, 317632), (7090, 280672), (7160, 277928), (7840, 253822), (8771, 226880), (9926, 200480), (10024, 198520), (11344, 175420), (11456, 173705), (12530, 158816), (14180, 140336), (14320, 138964), (15680, 126911), (17542, 113440), (19852, 100240), (20048, 99260), (22688, 87710), (24815, 80192), (25060, 79408), (28360, 70168), (28640, 69482), (34741, 57280), (35084, 56720), (39704, 50120), (40096, 49630), (43855, 45376)]