647981412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{20873}}^1$

素因数の和:21092

約数の個数: 48

約数和(自身を含む): 1636521600

約数和(自身を除く): 988540188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 199, 398, 597, 796, 1194, 2388, 2587, 5174, 7761, 10348, 15522, 20873, 31044, 41746, 62619, 83492, 125238, 250476, 271349, 542698, 814047, 1085396, 1628094, 3256188, 4153727, 8307454, 12461181, 16614908, 24922362, 49844724, 53998451, 107996902, 161995353, 215993804, 323990706, 647981412]

約数ペア:

[(1, 647981412), (2, 323990706), (3, 215993804), (4, 161995353), (6, 107996902), (12, 53998451), (13, 49844724), (26, 24922362), (39, 16614908), (52, 12461181), (78, 8307454), (156, 4153727), (199, 3256188), (398, 1628094), (597, 1085396), (796, 814047), (1194, 542698), (2388, 271349), (2587, 250476), (5174, 125238), (7761, 83492), (10348, 62619), (15522, 41746), (20873, 31044)]