643687252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{1483}}^1$

素因数の和:2008

約数の個数: 48

約数和(自身を含む): 1287945792

約数和(自身を除く): 644258540

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 491, 884, 982, 1483, 1964, 2966, 5932, 6383, 8347, 12766, 16694, 19279, 25211, 25532, 33388, 38558, 50422, 77116, 100844, 108511, 217022, 327743, 434044, 655486, 728153, 1310972, 1456306, 2912612, 9465989, 12378601, 18931978, 24757202, 37863956, 49514404, 160921813, 321843626, 643687252]

約数ペア:

[(1, 643687252), (2, 321843626), (4, 160921813), (13, 49514404), (17, 37863956), (26, 24757202), (34, 18931978), (52, 12378601), (68, 9465989), (221, 2912612), (442, 1456306), (491, 1310972), (884, 728153), (982, 655486), (1483, 434044), (1964, 327743), (2966, 217022), (5932, 108511), (6383, 100844), (8347, 77116), (12766, 50422), (16694, 38558), (19279, 33388), (25211, 25532)]