79995916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19979}}^1$

素因数の和:20014

約数の個数: 48

約数和(自身を含む): 187971840

約数和(自身を除く): 107975924

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, 19979, 39958, 79916, 139853, 219769, 259727, 279706, 439538, 519454, 559412, 879076, 1038908, 1538383, 1818089, 2856997, 3076766, 3636178, 5713994, 6153532, 7272356, 11427988, 19998979, 39997958, 79995916]

約数ペア:

[(1, 79995916), (2, 39997958), (4, 19998979), (7, 11427988), (11, 7272356), (13, 6153532), (14, 5713994), (22, 3636178), (26, 3076766), (28, 2856997), (44, 1818089), (52, 1538383), (77, 1038908), (91, 879076), (143, 559412), (154, 519454), (182, 439538), (286, 279706), (308, 259727), (364, 219769), (572, 139853), (1001, 79916), (2002, 39958), (4004, 19979)]