247156780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1483}}^1$

素因数の和:2146

約数の個数: 48

約数和(自身を含む): 560204064

約数和(自身を除く): 313047284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 641, 1282, 1483, 2564, 2966, 3205, 5932, 6410, 7415, 8333, 12820, 14830, 16666, 19279, 29660, 33332, 38558, 41665, 77116, 83330, 96395, 166660, 192790, 385580, 950603, 1901206, 3802412, 4753015, 9506030, 12357839, 19012060, 24715678, 49431356, 61789195, 123578390, 247156780]

約数ペア:

[(1, 247156780), (2, 123578390), (4, 61789195), (5, 49431356), (10, 24715678), (13, 19012060), (20, 12357839), (26, 9506030), (52, 4753015), (65, 3802412), (130, 1901206), (260, 950603), (641, 385580), (1282, 192790), (1483, 166660), (2564, 96395), (2966, 83330), (3205, 77116), (5932, 41665), (6410, 38558), (7415, 33332), (8333, 29660), (12820, 19279), (14830, 16666)]