81406754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 153861120

約数和(自身を除く): 72454366

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 71, 142, 143, 209, 211, 247, 286, 418, 422, 494, 781, 923, 1349, 1562, 1846, 2321, 2698, 2717, 2743, 4009, 4642, 5434, 5486, 8018, 10153, 14839, 14981, 17537, 20306, 29678, 29962, 30173, 35074, 44099, 52117, 60346, 88198, 104234, 164791, 192907, 194753, 284639, 329582, 385814, 389506, 569278, 573287, 1146574, 2142283, 3131029, 3700307, 4284566, 6262058, 7400614, 40703377, 81406754]

約数ペア:

[(1, 81406754), (2, 40703377), (11, 7400614), (13, 6262058), (19, 4284566), (22, 3700307), (26, 3131029), (38, 2142283), (71, 1146574), (142, 573287), (143, 569278), (209, 389506), (211, 385814), (247, 329582), (286, 284639), (418, 194753), (422, 192907), (494, 164791), (781, 104234), (923, 88198), (1349, 60346), (1562, 52117), (1846, 44099), (2321, 35074), (2698, 30173), (2717, 29962), (2743, 29678), (4009, 20306), (4642, 17537), (5434, 14981), (5486, 14839), (8018, 10153)]