81345840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17839}}^1$

素因数の和:17874

約数の個数: 80

約数和(自身を含む): 265459200

約数和(自身を除く): 184113360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17839, 35678, 53517, 71356, 89195, 107034, 142712, 178390, 214068, 267585, 285424, 338941, 356780, 428136, 535170, 677882, 713560, 856272, 1016823, 1070340, 1355764, 1427120, 1694705, 2033646, 2140680, 2711528, 3389410, 4067292, 4281360, 5084115, 5423056, 6778820, 8134584, 10168230, 13557640, 16269168, 20336460, 27115280, 40672920, 81345840]

約数ペア:

[(1, 81345840), (2, 40672920), (3, 27115280), (4, 20336460), (5, 16269168), (6, 13557640), (8, 10168230), (10, 8134584), (12, 6778820), (15, 5423056), (16, 5084115), (19, 4281360), (20, 4067292), (24, 3389410), (30, 2711528), (38, 2140680), (40, 2033646), (48, 1694705), (57, 1427120), (60, 1355764), (76, 1070340), (80, 1016823), (95, 856272), (114, 713560), (120, 677882), (152, 535170), (190, 428136), (228, 356780), (240, 338941), (285, 285424), (304, 267585), (380, 214068), (456, 178390), (570, 142712), (760, 107034), (912, 89195), (1140, 71356), (1520, 53517), (2280, 35678), (4560, 17839)]