15781856840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{1823}}^1$

素因数の和:2319

約数の個数: 128

約数和(自身を含む): 39004416000

約数和(自身を除く): 23222559160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 439, 493, 580, 680, 878, 986, 1160, 1756, 1823, 1972, 2195, 2465, 3512, 3646, 3944, 4390, 4930, 7292, 7463, 8780, 9115, 9860, 12731, 14584, 14926, 17560, 18230, 19720, 25462, 29852, 30991, 36460, 37315, 50924, 52867, 59704, 61982, 63655, 72920, 74630, 101848, 105734, 123964, 127310, 149260, 154955, 211468, 216427, 247928, 254620, 264335, 298520, 309910, 422936, 432854, 509240, 528670, 619820, 800297, 865708, 898739, 1057340, 1082135, 1239640, 1600594, 1731416, 1797478, 2114680, 2164270, 3201188, 3594956, 4001485, 4328540, 4493695, 6402376, 7189912, 8002970, 8657080, 8987390, 13605049, 16005940, 17974780, 23208613, 27210098, 32011880, 35949560, 46417226, 54420196, 68025245, 92834452, 108840392, 116043065, 136050490, 185668904, 232086130, 272100980, 394546421, 464172260, 544201960, 789092842, 928344520, 1578185684, 1972732105, 3156371368, 3945464210, 7890928420, 15781856840]

約数ペア:

[(1, 15781856840), (2, 7890928420), (4, 3945464210), (5, 3156371368), (8, 1972732105), (10, 1578185684), (17, 928344520), (20, 789092842), (29, 544201960), (34, 464172260), (40, 394546421), (58, 272100980), (68, 232086130), (85, 185668904), (116, 136050490), (136, 116043065), (145, 108840392), (170, 92834452), (232, 68025245), (290, 54420196), (340, 46417226), (439, 35949560), (493, 32011880), (580, 27210098), (680, 23208613), (878, 17974780), (986, 16005940), (1160, 13605049), (1756, 8987390), (1823, 8657080), (1972, 8002970), (2195, 7189912), (2465, 6402376), (3512, 4493695), (3646, 4328540), (3944, 4001485), (4390, 3594956), (4930, 3201188), (7292, 2164270), (7463, 2114680), (8780, 1797478), (9115, 1731416), (9860, 1600594), (12731, 1239640), (14584, 1082135), (14926, 1057340), (17560, 898739), (18230, 865708), (19720, 800297), (25462, 619820), (29852, 528670), (30991, 509240), (36460, 432854), (37315, 422936), (50924, 309910), (52867, 298520), (59704, 264335), (61982, 254620), (63655, 247928), (72920, 216427), (74630, 211468), (101848, 154955), (105734, 149260), (123964, 127310)]