81500048

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 188630784

約数和(自身を除く): 107130736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 71, 74, 112, 142, 148, 259, 277, 284, 296, 497, 518, 554, 568, 592, 994, 1036, 1108, 1136, 1939, 1988, 2072, 2216, 2627, 3878, 3976, 4144, 4432, 5254, 7756, 7952, 10249, 10508, 15512, 18389, 19667, 20498, 21016, 31024, 36778, 39334, 40996, 42032, 71743, 73556, 78668, 81992, 137669, 143486, 147112, 157336, 163984, 275338, 286972, 294224, 314672, 550676, 573944, 727679, 1101352, 1147888, 1455358, 2202704, 2910716, 5093753, 5821432, 10187506, 11642864, 20375012, 40750024, 81500048]

約数ペア:

[(1, 81500048), (2, 40750024), (4, 20375012), (7, 11642864), (8, 10187506), (14, 5821432), (16, 5093753), (28, 2910716), (37, 2202704), (56, 1455358), (71, 1147888), (74, 1101352), (112, 727679), (142, 573944), (148, 550676), (259, 314672), (277, 294224), (284, 286972), (296, 275338), (497, 163984), (518, 157336), (554, 147112), (568, 143486), (592, 137669), (994, 81992), (1036, 78668), (1108, 73556), (1136, 71743), (1939, 42032), (1988, 40996), (2072, 39334), (2216, 36778), (2627, 31024), (3878, 21016), (3976, 20498), (4144, 19667), (4432, 18389), (5254, 15512), (7756, 10508), (7952, 10249)]