84640556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21139}}^1$

素因数の和:21174

約数の個数: 48

約数和(自身を含む): 198885120

約数和(自身を除く): 114244564

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 21139, 42278, 84556, 147973, 232529, 274807, 295946, 465058, 549614, 591892, 930116, 1099228, 1627703, 1923649, 3022877, 3255406, 3847298, 6045754, 6510812, 7694596, 12091508, 21160139, 42320278, 84640556]

約数ペア:

[(1, 84640556), (2, 42320278), (4, 21160139), (7, 12091508), (11, 7694596), (13, 6510812), (14, 6045754), (22, 3847298), (26, 3255406), (28, 3022877), (44, 1923649), (52, 1627703), (77, 1099228), (91, 930116), (143, 591892), (154, 549614), (182, 465058), (286, 295946), (308, 274807), (364, 232529), (572, 147973), (1001, 84556), (2002, 42278), (4004, 21139)]