18778883140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{995699}}^1$

素因数の和:995772

約数の個数: 48

約数和(自身を含む): 42153955200

約数和(自身を除く): 23375072060

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1886, 3772, 4715, 9430, 18860, 995699, 1991398, 3982796, 4978495, 9956990, 19913980, 22901077, 40823659, 45802154, 81647318, 91604308, 114505385, 163294636, 204118295, 229010770, 408236590, 458021540, 816473180, 938944157, 1877888314, 3755776628, 4694720785, 9389441570, 18778883140]

約数ペア:

[(1, 18778883140), (2, 9389441570), (4, 4694720785), (5, 3755776628), (10, 1877888314), (20, 938944157), (23, 816473180), (41, 458021540), (46, 408236590), (82, 229010770), (92, 204118295), (115, 163294636), (164, 114505385), (205, 91604308), (230, 81647318), (410, 45802154), (460, 40823659), (820, 22901077), (943, 19913980), (1886, 9956990), (3772, 4978495), (4715, 3982796), (9430, 1991398), (18860, 995699)]