551980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 1368864

約数和(自身を除く): 816884

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 193, 220, 260, 286, 386, 572, 715, 772, 965, 1430, 1930, 2123, 2509, 2860, 3860, 4246, 5018, 8492, 10036, 10615, 12545, 21230, 25090, 27599, 42460, 50180, 55198, 110396, 137995, 275990, 551980]

約数ペア:

[(1, 551980), (2, 275990), (4, 137995), (5, 110396), (10, 55198), (11, 50180), (13, 42460), (20, 27599), (22, 25090), (26, 21230), (44, 12545), (52, 10615), (55, 10036), (65, 8492), (110, 5018), (130, 4246), (143, 3860), (193, 2860), (220, 2509), (260, 2123), (286, 1930), (386, 1430), (572, 965), (715, 772)]