72718880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34961}}^1$

素因数の和:34989

約数の個数: 48

約数和(自身を含む): 185018904

約数和(自身を除く): 112300024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 34961, 69922, 139844, 174805, 279688, 349610, 454493, 559376, 699220, 908986, 1118752, 1398440, 1817972, 2272465, 2796880, 3635944, 4544930, 5593760, 7271888, 9089860, 14543776, 18179720, 36359440, 72718880]

約数ペア:

[(1, 72718880), (2, 36359440), (4, 18179720), (5, 14543776), (8, 9089860), (10, 7271888), (13, 5593760), (16, 4544930), (20, 3635944), (26, 2796880), (32, 2272465), (40, 1817972), (52, 1398440), (65, 1118752), (80, 908986), (104, 699220), (130, 559376), (160, 454493), (208, 349610), (260, 279688), (416, 174805), (520, 139844), (1040, 69922), (2080, 34961)]