20512483220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{11717}}^1$

素因数の和:12033

約数の個数: 96

約数和(自身を含む): 48191915520

約数和(自身を除く): 27679432300

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 271, 323, 340, 380, 542, 646, 1084, 1292, 1355, 1615, 2710, 3230, 4607, 5149, 5420, 6460, 9214, 10298, 11717, 18428, 20596, 23035, 23434, 25745, 46070, 46868, 51490, 58585, 87533, 92140, 102980, 117170, 175066, 199189, 222623, 234340, 350132, 398378, 437665, 445246, 796756, 875330, 890492, 995945, 1113115, 1750660, 1991890, 2226230, 3175307, 3784591, 3983780, 4452460, 6350614, 7569182, 12701228, 15138364, 15876535, 18922955, 31753070, 37845910, 53980219, 60330833, 63506140, 75691820, 107960438, 120661666, 215920876, 241323332, 269901095, 301654165, 539802190, 603308330, 1025624161, 1079604380, 1206616660, 2051248322, 4102496644, 5128120805, 10256241610, 20512483220]

約数ペア:

[(1, 20512483220), (2, 10256241610), (4, 5128120805), (5, 4102496644), (10, 2051248322), (17, 1206616660), (19, 1079604380), (20, 1025624161), (34, 603308330), (38, 539802190), (68, 301654165), (76, 269901095), (85, 241323332), (95, 215920876), (170, 120661666), (190, 107960438), (271, 75691820), (323, 63506140), (340, 60330833), (380, 53980219), (542, 37845910), (646, 31753070), (1084, 18922955), (1292, 15876535), (1355, 15138364), (1615, 12701228), (2710, 7569182), (3230, 6350614), (4607, 4452460), (5149, 3983780), (5420, 3784591), (6460, 3175307), (9214, 2226230), (10298, 1991890), (11717, 1750660), (18428, 1113115), (20596, 995945), (23035, 890492), (23434, 875330), (25745, 796756), (46070, 445246), (46868, 437665), (51490, 398378), (58585, 350132), (87533, 234340), (92140, 222623), (102980, 199189), (117170, 175066)]