20166705880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{141263}}^1$

素因数の和:141400

約数の個数: 64

約数和(自身を含む): 46990056960

約数和(自身を除く): 26823351080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 83, 86, 166, 172, 215, 332, 344, 415, 430, 664, 830, 860, 1660, 1720, 3320, 3569, 7138, 14276, 17845, 28552, 35690, 71380, 141263, 142760, 282526, 565052, 706315, 1130104, 1412630, 2825260, 5650520, 6074309, 11724829, 12148618, 23449658, 24297236, 30371545, 46899316, 48594472, 58624145, 60743090, 93798632, 117248290, 121486180, 234496580, 242972360, 468993160, 504167647, 1008335294, 2016670588, 2520838235, 4033341176, 5041676470, 10083352940, 20166705880]

約数ペア:

[(1, 20166705880), (2, 10083352940), (4, 5041676470), (5, 4033341176), (8, 2520838235), (10, 2016670588), (20, 1008335294), (40, 504167647), (43, 468993160), (83, 242972360), (86, 234496580), (166, 121486180), (172, 117248290), (215, 93798632), (332, 60743090), (344, 58624145), (415, 48594472), (430, 46899316), (664, 30371545), (830, 24297236), (860, 23449658), (1660, 12148618), (1720, 11724829), (3320, 6074309), (3569, 5650520), (7138, 2825260), (14276, 1412630), (17845, 1130104), (28552, 706315), (35690, 565052), (71380, 282526), (141263, 142760)]